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Finding the Fourth Proportional to 381,882.60, 572,435.10 and 224,029.80

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Solution

The fourth proportional to 381,882.60, 572,435.10 and 224,029.80 is: 335,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,882.60 : 572,435.10 = 224,029.80 : x
  2. Step 2: Convert to fraction form
    381,882.60/572,435.10 = 224,029.80/x
  3. Step 3: Cross multiply
    381,882.60x = 572,435.10 × 224,029.80
  4. Step 4: Simplify right side
    381,882.60x = 128,242,520,965.98
  5. Step 5: Solve for x
    x = 128,242,520,965.98/381,882.60
  6. Step 6: Final answer
    x = 335,816.61

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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.