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Finding the Fourth Proportional to 625,437.90, 863,104.02 and 338,957.94

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Solution

The fourth proportional to 625,437.90, 863,104.02 and 338,957.94 is: 467,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,437.90 : 863,104.02 = 338,957.94 : x
  2. Step 2: Convert to fraction form
    625,437.90/863,104.02 = 338,957.94/x
  3. Step 3: Cross multiply
    625,437.90x = 863,104.02 × 338,957.94
  4. Step 4: Simplify right side
    625,437.90x = 292,555,960,624.92
  5. Step 5: Solve for x
    x = 292,555,960,624.92/625,437.90
  6. Step 6: Final answer
    x = 467,761.80

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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.