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Finding the Fourth Proportional to 625,229.78, 862,805.82 and 353,291.82

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Solution

The fourth proportional to 625,229.78, 862,805.82 and 353,291.82 is: 487,536.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,229.78 : 862,805.82 = 353,291.82 : x
  2. Step 2: Convert to fraction form
    625,229.78/862,805.82 = 353,291.82/x
  3. Step 3: Cross multiply
    625,229.78x = 862,805.82 × 353,291.82
  4. Step 4: Simplify right side
    625,229.78x = 304,822,234,556.45
  5. Step 5: Solve for x
    x = 304,822,234,556.45/625,229.78
  6. Step 6: Final answer
    x = 487,536.34

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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.