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Finding the Fourth Proportional to 396.52, 594.80 and 153

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Solution

The fourth proportional to 396.52, 594.80 and 153 is: 229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.52 : 594.80 = 153 : x
  2. Step 2: Convert to fraction form
    396.52/594.80 = 153/x
  3. Step 3: Cross multiply
    396.52x = 594.80 × 153
  4. Step 4: Simplify right side
    396.52x = 91,004.40
  5. Step 5: Solve for x
    x = 91,004.40/396.52
  6. Step 6: Final answer
    x = 229.51

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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.