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Finding the Fourth Proportional to 792.62, 1,194.07 and 724.96

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Solution

The fourth proportional to 792.62, 1,194.07 and 724.96 is: 1,092.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.62 : 1,194.07 = 724.96 : x
  2. Step 2: Convert to fraction form
    792.62/1,194.07 = 724.96/x
  3. Step 3: Cross multiply
    792.62x = 1,194.07 × 724.96
  4. Step 4: Simplify right side
    792.62x = 865,652.99
  5. Step 5: Solve for x
    x = 865,652.99/792.62
  6. Step 6: Final answer
    x = 1,092.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.