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Finding the Fourth Proportional to 1,062.12, 1,593.20 and 292.64

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Solution

The fourth proportional to 1,062.12, 1,593.20 and 292.64 is: 438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.12 : 1,593.20 = 292.64 : x
  2. Step 2: Convert to fraction form
    1,062.12/1,593.20 = 292.64/x
  3. Step 3: Cross multiply
    1,062.12x = 1,593.20 × 292.64
  4. Step 4: Simplify right side
    1,062.12x = 466,234.05
  5. Step 5: Solve for x
    x = 466,234.05/1,062.12
  6. Step 6: Final answer
    x = 438.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.