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Finding the Fourth Proportional to 1,249.57, 1,874.34 and 337.57

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Solution

The fourth proportional to 1,249.57, 1,874.34 and 337.57 is: 506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.57 : 1,874.34 = 337.57 : x
  2. Step 2: Convert to fraction form
    1,249.57/1,874.34 = 337.57/x
  3. Step 3: Cross multiply
    1,249.57x = 1,874.34 × 337.57
  4. Step 4: Simplify right side
    1,249.57x = 632,720.95
  5. Step 5: Solve for x
    x = 632,720.95/1,249.57
  6. Step 6: Final answer
    x = 506.35

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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.