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Finding the Fourth Proportional to 625,677.78, 862,976.72 and 410,739.42

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Solution

The fourth proportional to 625,677.78, 862,976.72 and 410,739.42 is: 566,519.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,677.78 : 862,976.72 = 410,739.42 : x
  2. Step 2: Convert to fraction form
    625,677.78/862,976.72 = 410,739.42/x
  3. Step 3: Cross multiply
    625,677.78x = 862,976.72 × 410,739.42
  4. Step 4: Simplify right side
    625,677.78x = 354,458,555,392.61
  5. Step 5: Solve for x
    x = 354,458,555,392.61/625,677.78
  6. Step 6: Final answer
    x = 566,519.33

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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.