Find the height of the parallelogram:

linear scale factor = 6

$h=6(1\sqrt{3})=6\sqrt{3}\approx 10.39 \text{ inches}$

Find the area of the base:

Area of parallelogram = area of prism base
Area of a parallelogram = (base)(height)
= (13)(7)
= 91 inches²

Find the volume of the prism:

Volume of prism = (area of base)(depth)
≈ (91 inches²)(10.39 inches)
≈ 945.49 inches³