Finding the Fourth Proportional to 515,960.64, 773,945.28 and 142,004.16
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Solution
The fourth proportional to 515,960.64, 773,945.28 and 142,004.16 is: 213,007.43
Step by Step Solution
- Step 1: Write the proportion equation
515,960.64 : 773,945.28 = 142,004.16 : x - Step 2: Convert to fraction form
515,960.64/773,945.28 = 142,004.16/x - Step 3: Cross multiply
515,960.64x = 773,945.28 × 142,004.16 - Step 4: Simplify right side
515,960.64x = 109,903,449,372.37 - Step 5: Solve for x
x = 109,903,449,372.37/515,960.64 - Step 6: Final answer
x = 213,007.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.