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Finding the Fourth Proportional to 792.36, 1,093.68 and 460.92

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Solution

The fourth proportional to 792.36, 1,093.68 and 460.92 is: 636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.36 : 1,093.68 = 460.92 : x
  2. Step 2: Convert to fraction form
    792.36/1,093.68 = 460.92/x
  3. Step 3: Cross multiply
    792.36x = 1,093.68 × 460.92
  4. Step 4: Simplify right side
    792.36x = 504,098.99
  5. Step 5: Solve for x
    x = 504,098.99/792.36
  6. Step 6: Final answer
    x = 636.20

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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.