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Finding the Fourth Proportional to 2,338, 3,507.51 and 694.66

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Solution

The fourth proportional to 2,338, 3,507.51 and 694.66 is: 1,042.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338 : 3,507.51 = 694.66 : x
  2. Step 2: Convert to fraction form
    2,338/3,507.51 = 694.66/x
  3. Step 3: Cross multiply
    2,338x = 3,507.51 × 694.66
  4. Step 4: Simplify right side
    2,338x = 2,436,526.90
  5. Step 5: Solve for x
    x = 2,436,526.90/2,338
  6. Step 6: Final answer
    x = 1,042.14

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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.