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Finding the Fourth Proportional to 359,385.64, 538,641.18 and 254,234.92

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Solution

The fourth proportional to 359,385.64, 538,641.18 and 254,234.92 is: 381,043.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,385.64 : 538,641.18 = 254,234.92 : x
  2. Step 2: Convert to fraction form
    359,385.64/538,641.18 = 254,234.92/x
  3. Step 3: Cross multiply
    359,385.64x = 538,641.18 × 254,234.92
  4. Step 4: Simplify right side
    359,385.64x = 136,941,397,306.01
  5. Step 5: Solve for x
    x = 136,941,397,306.01/359,385.64
  6. Step 6: Final answer
    x = 381,043.04

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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.