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Finding the Fourth Proportional to 502,957.20, 754,176.60 and 187,251.60

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Solution

The fourth proportional to 502,957.20, 754,176.60 and 187,251.60 is: 280,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,957.20 : 754,176.60 = 187,251.60 : x
  2. Step 2: Convert to fraction form
    502,957.20/754,176.60 = 187,251.60/x
  3. Step 3: Cross multiply
    502,957.20x = 754,176.60 × 187,251.60
  4. Step 4: Simplify right side
    502,957.20x = 141,220,775,032.56
  5. Step 5: Solve for x
    x = 141,220,775,032.56/502,957.20
  6. Step 6: Final answer
    x = 280,780.90

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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.