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Finding the Fourth Proportional to 625,196.73, 862,772.37 and 338,716.80

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Solution

The fourth proportional to 625,196.73, 862,772.37 and 338,716.80 is: 467,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,196.73 : 862,772.37 = 338,716.80 : x
  2. Step 2: Convert to fraction form
    625,196.73/862,772.37 = 338,716.80/x
  3. Step 3: Cross multiply
    625,196.73x = 862,772.37 × 338,716.80
  4. Step 4: Simplify right side
    625,196.73x = 292,235,496,294.82
  5. Step 5: Solve for x
    x = 292,235,496,294.82/625,196.73
  6. Step 6: Final answer
    x = 467,429.66

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1.5x scale

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.