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Finding the Fourth Proportional to 1,244.52, 1,716.86 and 746.29

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Solution

The fourth proportional to 1,244.52, 1,716.86 and 746.29 is: 1,029.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.52 : 1,716.86 = 746.29 : x
  2. Step 2: Convert to fraction form
    1,244.52/1,716.86 = 746.29/x
  3. Step 3: Cross multiply
    1,244.52x = 1,716.86 × 746.29
  4. Step 4: Simplify right side
    1,244.52x = 1,281,273.86
  5. Step 5: Solve for x
    x = 1,281,273.86/1,244.52
  6. Step 6: Final answer
    x = 1,029.54

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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.