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Finding the Fourth Proportional to 522,855.38, 721,540.36 and 296,500.88

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Solution

The fourth proportional to 522,855.38, 721,540.36 and 296,500.88 is: 409,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,855.38 : 721,540.36 = 296,500.88 : x
  2. Step 2: Convert to fraction form
    522,855.38/721,540.36 = 296,500.88/x
  3. Step 3: Cross multiply
    522,855.38x = 721,540.36 × 296,500.88
  4. Step 4: Simplify right side
    522,855.38x = 213,937,351,695.52
  5. Step 5: Solve for x
    x = 213,937,351,695.52/522,855.38
  6. Step 6: Final answer
    x = 409,171.18

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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.