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Finding the Fourth Proportional to 792.20, 1,093.62 and 527.08

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Solution

The fourth proportional to 792.20, 1,093.62 and 527.08 is: 727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.20 : 1,093.62 = 527.08 : x
  2. Step 2: Convert to fraction form
    792.20/1,093.62 = 527.08/x
  3. Step 3: Cross multiply
    792.20x = 1,093.62 × 527.08
  4. Step 4: Simplify right side
    792.20x = 576,424.62
  5. Step 5: Solve for x
    x = 576,424.62/792.20
  6. Step 6: Final answer
    x = 727.63

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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.