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Finding the Fourth Proportional to 351,489.20, 527,233.80 and 231,914.98

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Solution

The fourth proportional to 351,489.20, 527,233.80 and 231,914.98 is: 347,872.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,489.20 : 527,233.80 = 231,914.98 : x
  2. Step 2: Convert to fraction form
    351,489.20/527,233.80 = 231,914.98/x
  3. Step 3: Cross multiply
    351,489.20x = 527,233.80 × 231,914.98
  4. Step 4: Simplify right side
    351,489.20x = 122,273,413,546.16
  5. Step 5: Solve for x
    x = 122,273,413,546.16/351,489.20
  6. Step 6: Final answer
    x = 347,872.46

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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.