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Finding the Fourth Proportional to 1,104.92, 1,523.66 and 773.24

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Solution

The fourth proportional to 1,104.92, 1,523.66 and 773.24 is: 1,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.92 : 1,523.66 = 773.24 : x
  2. Step 2: Convert to fraction form
    1,104.92/1,523.66 = 773.24/x
  3. Step 3: Cross multiply
    1,104.92x = 1,523.66 × 773.24
  4. Step 4: Simplify right side
    1,104.92x = 1,178,154.86
  5. Step 5: Solve for x
    x = 1,178,154.86/1,104.92
  6. Step 6: Final answer
    x = 1,066.28

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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.