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Finding the Fourth Proportional to 713.92, 984.18 and 566.32

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Solution

The fourth proportional to 713.92, 984.18 and 566.32 is: 780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.92 : 984.18 = 566.32 : x
  2. Step 2: Convert to fraction form
    713.92/984.18 = 566.32/x
  3. Step 3: Cross multiply
    713.92x = 984.18 × 566.32
  4. Step 4: Simplify right side
    713.92x = 557,360.82
  5. Step 5: Solve for x
    x = 557,360.82/713.92
  6. Step 6: Final answer
    x = 780.70

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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.