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Finding the Fourth Proportional to 618,257.43, 927,404.37 and 527,729.38

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Solution

The fourth proportional to 618,257.43, 927,404.37 and 527,729.38 is: 791,609.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,257.43 : 927,404.37 = 527,729.38 : x
  2. Step 2: Convert to fraction form
    618,257.43/927,404.37 = 527,729.38/x
  3. Step 3: Cross multiply
    618,257.43x = 927,404.37 × 527,729.38
  4. Step 4: Simplify right side
    618,257.43x = 489,418,530,870.88
  5. Step 5: Solve for x
    x = 489,418,530,870.88/618,257.43
  6. Step 6: Final answer
    x = 791,609.62

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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.