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Finding the Third Proportional to 396.09 and 594.38

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Solution

The third proportional to 396.09 and 594.38 is: 891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.09 : 594.38 = 594.38 : x
  2. Step 2: Convert to fraction form
    396.09/594.38 = 594.38/x
  3. Step 3: Cross multiply
    396.09x = 594.38 × 594.38
  4. Step 4: Simplify right side
    396.09x = 353,281.64
  5. Step 5: Solve for x
    x = 353,281.64/396.09
  6. Step 6: Final answer
    x = 891.91

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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.