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Finding the Fourth Proportional to 625,456.74, 862,674.17 and 396,051.37

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Solution

The fourth proportional to 625,456.74, 862,674.17 and 396,051.37 is: 546,262.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,456.74 : 862,674.17 = 396,051.37 : x
  2. Step 2: Convert to fraction form
    625,456.74/862,674.17 = 396,051.37/x
  3. Step 3: Cross multiply
    625,456.74x = 862,674.17 × 396,051.37
  4. Step 4: Simplify right side
    625,456.74x = 341,663,284,911.86
  5. Step 5: Solve for x
    x = 341,663,284,911.86/625,456.74
  6. Step 6: Final answer
    x = 546,262.06

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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.