Standard Deviation for Multiple Hands Played Simultaneously

I obtained the following text and chart from the Wizard of Odds, Appendix 4:

[Begin quote] "Following is the standard deviation per individual hand, playing flat betting 1 to 3 hands at the same time. These numbers are courtesy of Marsha Ness, who used Blackjack Audit simulation software. The rules are 6 decks, dealer stands on soft 17, double any two cards, double after split, no surrender, split up to 4 hands, no resplitting aces, no drawing to split aces.

Multiple Hand Standard Deviation
Hands Std. Dev.
1 1.15514
2 1.34942
3 1.51957

For example, the total standard deviation of three hands of $100 each, played at the same time, would be $100 � sqr(3) � 1.51957 = $263.20. By comparison, the standard deviation of a single hand of $300 would be $300 � 1.15514 = $346.54." [End quote]

I realize the following is not a likely real-world casino scenario, but my question is what would be the total standard deviation of FOUR hands of $100 each, played at the same time, and what would be the total standard deviation of FIVE hands of $100 each, played at the same time?