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Finding the Fourth Proportional to 625,006.80, 862,562.40 and 353,124.60

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Solution

The fourth proportional to 625,006.80, 862,562.40 and 353,124.60 is: 487,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,006.80 : 862,562.40 = 353,124.60 : x
  2. Step 2: Convert to fraction form
    625,006.80/862,562.40 = 353,124.60/x
  3. Step 3: Cross multiply
    625,006.80x = 862,562.40 × 353,124.60
  4. Step 4: Simplify right side
    625,006.80x = 304,592,002,475.04
  5. Step 5: Solve for x
    x = 304,592,002,475.04/625,006.80
  6. Step 6: Final answer
    x = 487,341.90

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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.