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Finding the Fourth Proportional to 625,229.30, 862,805.13 and 353,291.34

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Solution

The fourth proportional to 625,229.30, 862,805.13 and 353,291.34 is: 487,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,229.30 : 862,805.13 = 353,291.34 : x
  2. Step 2: Convert to fraction form
    625,229.30/862,805.13 = 353,291.34/x
  3. Step 3: Cross multiply
    625,229.30x = 862,805.13 × 353,291.34
  4. Step 4: Simplify right side
    625,229.30x = 304,821,582,447.25
  5. Step 5: Solve for x
    x = 304,821,582,447.25/625,229.30
  6. Step 6: Final answer
    x = 487,535.66

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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.