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Finding the Fourth Proportional to 695.24, 1,042.86 and 564.62

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Solution

The fourth proportional to 695.24, 1,042.86 and 564.62 is: 846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.24 : 1,042.86 = 564.62 : x
  2. Step 2: Convert to fraction form
    695.24/1,042.86 = 564.62/x
  3. Step 3: Cross multiply
    695.24x = 1,042.86 × 564.62
  4. Step 4: Simplify right side
    695.24x = 588,819.21
  5. Step 5: Solve for x
    x = 588,819.21/695.24
  6. Step 6: Final answer
    x = 846.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.