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Finding the Fourth Proportional to 625,467.32, 863,149.17 and 338,992.19

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Solution

The fourth proportional to 625,467.32, 863,149.17 and 338,992.19 is: 467,811.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,467.32 : 863,149.17 = 338,992.19 : x
  2. Step 2: Convert to fraction form
    625,467.32/863,149.17 = 338,992.19/x
  3. Step 3: Cross multiply
    625,467.32x = 863,149.17 × 338,992.19
  4. Step 4: Simplify right side
    625,467.32x = 292,600,825,740.02
  5. Step 5: Solve for x
    x = 292,600,825,740.02/625,467.32
  6. Step 6: Final answer
    x = 467,811.53

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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.