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Finding the Fourth Proportional to 625,197.68, 862,823.46 and 353,321.97

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Solution

The fourth proportional to 625,197.68, 862,823.46 and 353,321.97 is: 487,612.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,197.68 : 862,823.46 = 353,321.97 : x
  2. Step 2: Convert to fraction form
    625,197.68/862,823.46 = 353,321.97/x
  3. Step 3: Cross multiply
    625,197.68x = 862,823.46 × 353,321.97
  4. Step 4: Simplify right side
    625,197.68x = 304,854,480,751.35
  5. Step 5: Solve for x
    x = 304,854,480,751.35/625,197.68
  6. Step 6: Final answer
    x = 487,612.94

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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.