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Finding the Fourth Proportional to 792.43, 1,093.82 and 461.18

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Solution

The fourth proportional to 792.43, 1,093.82 and 461.18 is: 636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.43 : 1,093.82 = 461.18 : x
  2. Step 2: Convert to fraction form
    792.43/1,093.82 = 461.18/x
  3. Step 3: Cross multiply
    792.43x = 1,093.82 × 461.18
  4. Step 4: Simplify right side
    792.43x = 504,447.91
  5. Step 5: Solve for x
    x = 504,447.91/792.43
  6. Step 6: Final answer
    x = 636.58

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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.