Answer
$1,490,625 mile^{2}$
$42.14$ %
Work Step by Step
1. Convert value in acres into value in feet by using conversion factor $[1acre=43560feet^{2}]$
$954 \times 10^{6} acres \times \frac{43560 ft^{2}}{1 acre} =4,155,624 \times 10 ^{7} ft^{2}$
2. Then, convert square feet into square miles by dividing it by conversion factor [ 1 mile = 5280 feet], then [$ 1 mile^{2} = 5280^{2} ft^{2}= 27878400 ft^{2}$]
$\frac{4,155,624 \times 10 ^{7} ft^{2}}{27878400 ft^{2}/mile^{2}}= 1490625 mile^{2}$
3. To calculate the percentage of total land area, divide the land area value by the total area given
$\frac{1490625 mile^{2}}{3537000mile^{2}}\times 100$% = 42.144 % or $\approx$ 42.14%
