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Finding the Fourth Proportional to 927.32, 1,383.16 and 788.82

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Solution

The fourth proportional to 927.32, 1,383.16 and 788.82 is: 1,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.32 : 1,383.16 = 788.82 : x
  2. Step 2: Convert to fraction form
    927.32/1,383.16 = 788.82/x
  3. Step 3: Cross multiply
    927.32x = 1,383.16 × 788.82
  4. Step 4: Simplify right side
    927.32x = 1,091,064.27
  5. Step 5: Solve for x
    x = 1,091,064.27/927.32
  6. Step 6: Final answer
    x = 1,176.58

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