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Finding the Fourth Proportional to 1,168.53, 1,753.41 and 475.71

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Solution

The fourth proportional to 1,168.53, 1,753.41 and 475.71 is: 713.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.53 : 1,753.41 = 475.71 : x
  2. Step 2: Convert to fraction form
    1,168.53/1,753.41 = 475.71/x
  3. Step 3: Cross multiply
    1,168.53x = 1,753.41 × 475.71
  4. Step 4: Simplify right side
    1,168.53x = 834,114.67
  5. Step 5: Solve for x
    x = 834,114.67/1,168.53
  6. Step 6: Final answer
    x = 713.82

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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.