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Finding the Fourth Proportional to 396.67, 594.92 and 153.13

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Solution

The fourth proportional to 396.67, 594.92 and 153.13 is: 229.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.67 : 594.92 = 153.13 : x
  2. Step 2: Convert to fraction form
    396.67/594.92 = 153.13/x
  3. Step 3: Cross multiply
    396.67x = 594.92 × 153.13
  4. Step 4: Simplify right side
    396.67x = 91,099.33
  5. Step 5: Solve for x
    x = 91,099.33/396.67
  6. Step 6: Final answer
    x = 229.66

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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.