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Finding the Fourth Proportional to 1,744.91, 2,408 and 958.96

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Solution

The fourth proportional to 1,744.91, 2,408 and 958.96 is: 1,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.91 : 2,408 = 958.96 : x
  2. Step 2: Convert to fraction form
    1,744.91/2,408 = 958.96/x
  3. Step 3: Cross multiply
    1,744.91x = 2,408 × 958.96
  4. Step 4: Simplify right side
    1,744.91x = 2,309,175.68
  5. Step 5: Solve for x
    x = 2,309,175.68/1,744.91
  6. Step 6: Final answer
    x = 1,323.38

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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.