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Finding the Fourth Proportional to 2,361.19, 3,542.17 and 717.61

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Solution

The fourth proportional to 2,361.19, 3,542.17 and 717.61 is: 1,076.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361.19 : 3,542.17 = 717.61 : x
  2. Step 2: Convert to fraction form
    2,361.19/3,542.17 = 717.61/x
  3. Step 3: Cross multiply
    2,361.19x = 3,542.17 × 717.61
  4. Step 4: Simplify right side
    2,361.19x = 2,541,895.21
  5. Step 5: Solve for x
    x = 2,541,895.21/2,361.19
  6. Step 6: Final answer
    x = 1,076.53

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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.