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Finding the Fourth Proportional to 554,105.92, 764,610.96 and 339,306.88

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Solution

The fourth proportional to 554,105.92, 764,610.96 and 339,306.88 is: 468,209.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,105.92 : 764,610.96 = 339,306.88 : x
  2. Step 2: Convert to fraction form
    554,105.92/764,610.96 = 339,306.88/x
  3. Step 3: Cross multiply
    554,105.92x = 764,610.96 × 339,306.88
  4. Step 4: Simplify right side
    554,105.92x = 259,437,759,251.41
  5. Step 5: Solve for x
    x = 259,437,759,251.41/554,105.92
  6. Step 6: Final answer
    x = 468,209.69

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1.5x scale

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.