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Finding the Fourth Proportional to 792.56, 1,093.76 and 460.96

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Solution

The fourth proportional to 792.56, 1,093.76 and 460.96 is: 636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.56 : 1,093.76 = 460.96 : x
  2. Step 2: Convert to fraction form
    792.56/1,093.76 = 460.96/x
  3. Step 3: Cross multiply
    792.56x = 1,093.76 × 460.96
  4. Step 4: Simplify right side
    792.56x = 504,179.61
  5. Step 5: Solve for x
    x = 504,179.61/792.56
  6. Step 6: Final answer
    x = 636.14

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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.