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Finding the Fourth Proportional to 625,190.59, 862,767.15 and 338,710.67

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Solution

The fourth proportional to 625,190.59, 862,767.15 and 338,710.67 is: 467,422.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,190.59 : 862,767.15 = 338,710.67 : x
  2. Step 2: Convert to fraction form
    625,190.59/862,767.15 = 338,710.67/x
  3. Step 3: Cross multiply
    625,190.59x = 862,767.15 × 338,710.67
  4. Step 4: Simplify right side
    625,190.59x = 292,228,441,934.93
  5. Step 5: Solve for x
    x = 292,228,441,934.93/625,190.59
  6. Step 6: Final answer
    x = 467,422.97

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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.