To calculate the volume of each of the given rectangular prisms, you can use the formula: Volume = Length x Width x Height.

For the first rectangular prism:
Volume = 0.47 x 17 x 2.5
Volume = 19.975

For the second rectangular prism:
Volume = 0.125 x 4.3 x 80
Volume = 43

For the third rectangular prism:
Volume = 0.05 x 6.73 x 0.2
Volume = 0.0673

For the fourth rectangular prism:
Volume = 0.4 x 0.36 x 5
Volume = 0.72

Therefore, the volumes of the given rectangular prisms are:

19.975 cubic units43 cubic units0.0673 cubic units0.72 cubic units