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Finding the Fourth Proportional to 417,761.31, 576,212.61 and 383,416.92

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Solution

The fourth proportional to 417,761.31, 576,212.61 and 383,416.92 is: 528,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,761.31 : 576,212.61 = 383,416.92 : x
  2. Step 2: Convert to fraction form
    417,761.31/576,212.61 = 383,416.92/x
  3. Step 3: Cross multiply
    417,761.31x = 576,212.61 × 383,416.92
  4. Step 4: Simplify right side
    417,761.31x = 220,929,664,191.36
  5. Step 5: Solve for x
    x = 220,929,664,191.36/417,761.31
  6. Step 6: Final answer
    x = 528,841.85

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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.