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Finding the Fourth Proportional to 625,234.58, 862,812.48 and 353,296.61

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Solution

The fourth proportional to 625,234.58, 862,812.48 and 353,296.61 is: 487,542.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,234.58 : 862,812.48 = 353,296.61 : x
  2. Step 2: Convert to fraction form
    625,234.58/862,812.48 = 353,296.61/x
  3. Step 3: Cross multiply
    625,234.58x = 862,812.48 × 353,296.61
  4. Step 4: Simplify right side
    625,234.58x = 304,828,719,935.63
  5. Step 5: Solve for x
    x = 304,828,719,935.63/625,234.58
  6. Step 6: Final answer
    x = 487,542.96

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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.