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Finding the Fourth Proportional to 1,192.92, 1,789.16 and 462.56

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Solution

The fourth proportional to 1,192.92, 1,789.16 and 462.56 is: 693.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.92 : 1,789.16 = 462.56 : x
  2. Step 2: Convert to fraction form
    1,192.92/1,789.16 = 462.56/x
  3. Step 3: Cross multiply
    1,192.92x = 1,789.16 × 462.56
  4. Step 4: Simplify right side
    1,192.92x = 827,593.85
  5. Step 5: Solve for x
    x = 827,593.85/1,192.92
  6. Step 6: Final answer
    x = 693.75

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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.