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Finding the Fourth Proportional to 1,744.70, 2,408.00 and 1,114.74

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Solution

The fourth proportional to 1,744.70, 2,408.00 and 1,114.74 is: 1,538.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.70 : 2,408.00 = 1,114.74 : x
  2. Step 2: Convert to fraction form
    1,744.70/2,408.00 = 1,114.74/x
  3. Step 3: Cross multiply
    1,744.70x = 2,408.00 × 1,114.74
  4. Step 4: Simplify right side
    1,744.70x = 2,684,288.35
  5. Step 5: Solve for x
    x = 2,684,288.35/1,744.70
  6. Step 6: Final answer
    x = 1,538.54

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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.