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Finding the Fourth Proportional to 394.46, 591.53 and 116.73

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Solution

The fourth proportional to 394.46, 591.53 and 116.73 is: 175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.46 : 591.53 = 116.73 : x
  2. Step 2: Convert to fraction form
    394.46/591.53 = 116.73/x
  3. Step 3: Cross multiply
    394.46x = 591.53 × 116.73
  4. Step 4: Simplify right side
    394.46x = 69,052.69
  5. Step 5: Solve for x
    x = 69,052.69/394.46
  6. Step 6: Final answer
    x = 175.06

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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.