381.51 ft³
V(sphere) = [tex]\frac{4}{3}\pi*r^{3}[/tex]
V = [tex]\frac{4}{3}*3.14*(4.5ft)^{3}[/tex]
=4*3.14*91.125ft³/3
= 1144.53ft³/3
= 381.51 ft³
