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Finding the Fourth Proportional to 2,338.46, 3,508.29 and 694.97

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Solution

The fourth proportional to 2,338.46, 3,508.29 and 694.97 is: 1,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338.46 : 3,508.29 = 694.97 : x
  2. Step 2: Convert to fraction form
    2,338.46/3,508.29 = 694.97/x
  3. Step 3: Cross multiply
    2,338.46x = 3,508.29 × 694.97
  4. Step 4: Simplify right side
    2,338.46x = 2,438,156.30
  5. Step 5: Solve for x
    x = 2,438,156.30/2,338.46
  6. Step 6: Final answer
    x = 1,042.63

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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.