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Finding the Fourth Proportional to 1,744.97, 2,408.21 and 959.18

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Solution

The fourth proportional to 1,744.97, 2,408.21 and 959.18 is: 1,323.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.97 : 2,408.21 = 959.18 : x
  2. Step 2: Convert to fraction form
    1,744.97/2,408.21 = 959.18/x
  3. Step 3: Cross multiply
    1,744.97x = 2,408.21 × 959.18
  4. Step 4: Simplify right side
    1,744.97x = 2,309,890.03
  5. Step 5: Solve for x
    x = 2,309,890.03/1,744.97
  6. Step 6: Final answer
    x = 1,323.75

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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.