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Finding the Fourth Proportional to 359,387.64, 538,644.18 and 254,236.92

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Solution

The fourth proportional to 359,387.64, 538,644.18 and 254,236.92 is: 381,046.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,387.64 : 538,644.18 = 254,236.92 : x
  2. Step 2: Convert to fraction form
    359,387.64/538,644.18 = 254,236.92/x
  3. Step 3: Cross multiply
    359,387.64x = 538,644.18 × 254,236.92
  4. Step 4: Simplify right side
    359,387.64x = 136,943,237,299.13
  5. Step 5: Solve for x
    x = 136,943,237,299.13/359,387.64
  6. Step 6: Final answer
    x = 381,046.04

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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.