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Finding the Fourth Proportional to 526,711.48, 726,956.46 and 297,338.68

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Solution

The fourth proportional to 526,711.48, 726,956.46 and 297,338.68 is: 410,380.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,711.48 : 726,956.46 = 297,338.68 : x
  2. Step 2: Convert to fraction form
    526,711.48/726,956.46 = 297,338.68/x
  3. Step 3: Cross multiply
    526,711.48x = 726,956.46 × 297,338.68
  4. Step 4: Simplify right side
    526,711.48x = 216,152,274,233.87
  5. Step 5: Solve for x
    x = 216,152,274,233.87/526,711.48
  6. Step 6: Final answer
    x = 410,380.79

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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.