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Finding the Fourth Proportional to 392,224.72, 588,531.48 and 155,562.16

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Solution

The fourth proportional to 392,224.72, 588,531.48 and 155,562.16 is: 233,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,224.72 : 588,531.48 = 155,562.16 : x
  2. Step 2: Convert to fraction form
    392,224.72/588,531.48 = 155,562.16/x
  3. Step 3: Cross multiply
    392,224.72x = 588,531.48 × 155,562.16
  4. Step 4: Simplify right side
    392,224.72x = 91,553,228,256.80
  5. Step 5: Solve for x
    x = 91,553,228,256.80/392,224.72
  6. Step 6: Final answer
    x = 233,420.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.