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Finding the Fourth Proportional to 547,229.27, 755,246.06 and 317,740.87

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Solution

The fourth proportional to 547,229.27, 755,246.06 and 317,740.87 is: 438,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,229.27 : 755,246.06 = 317,740.87 : x
  2. Step 2: Convert to fraction form
    547,229.27/755,246.06 = 317,740.87/x
  3. Step 3: Cross multiply
    547,229.27x = 755,246.06 × 317,740.87
  4. Step 4: Simplify right side
    547,229.27x = 239,972,538,579.77
  5. Step 5: Solve for x
    x = 239,972,538,579.77/547,229.27
  6. Step 6: Final answer
    x = 438,522.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.