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Finding the Fourth Proportional to 792.44, 1,093.49 and 460.80

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Solution

The fourth proportional to 792.44, 1,093.49 and 460.80 is: 635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.44 : 1,093.49 = 460.80 : x
  2. Step 2: Convert to fraction form
    792.44/1,093.49 = 460.80/x
  3. Step 3: Cross multiply
    792.44x = 1,093.49 × 460.80
  4. Step 4: Simplify right side
    792.44x = 503,881.34
  5. Step 5: Solve for x
    x = 503,881.34/792.44
  6. Step 6: Final answer
    x = 635.86

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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.