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Finding the Fourth Proportional to 625,196.95, 862,772.64 and 338,717.04

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Solution

The fourth proportional to 625,196.95, 862,772.64 and 338,717.04 is: 467,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,196.95 : 862,772.64 = 338,717.04 : x
  2. Step 2: Convert to fraction form
    625,196.95/862,772.64 = 338,717.04/x
  3. Step 3: Cross multiply
    625,196.95x = 862,772.64 × 338,717.04
  4. Step 4: Simplify right side
    625,196.95x = 292,235,794,813.79
  5. Step 5: Solve for x
    x = 292,235,794,813.79/625,196.95
  6. Step 6: Final answer
    x = 467,429.98

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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.