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Finding the Fourth Proportional to 695.98, 1,044.15 and 263.17

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Solution

The fourth proportional to 695.98, 1,044.15 and 263.17 is: 394.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.98 : 1,044.15 = 263.17 : x
  2. Step 2: Convert to fraction form
    695.98/1,044.15 = 263.17/x
  3. Step 3: Cross multiply
    695.98x = 1,044.15 × 263.17
  4. Step 4: Simplify right side
    695.98x = 274,788.96
  5. Step 5: Solve for x
    x = 274,788.96/695.98
  6. Step 6: Final answer
    x = 394.82

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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.