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Finding the Fourth Proportional to 992.32, 1,481.36 and 927.04

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Solution

The fourth proportional to 992.32, 1,481.36 and 927.04 is: 1,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    992.32 : 1,481.36 = 927.04 : x
  2. Step 2: Convert to fraction form
    992.32/1,481.36 = 927.04/x
  3. Step 3: Cross multiply
    992.32x = 1,481.36 × 927.04
  4. Step 4: Simplify right side
    992.32x = 1,373,279.97
  5. Step 5: Solve for x
    x = 1,373,279.97/992.32
  6. Step 6: Final answer
    x = 1,383.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.