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Finding the Third Proportional to 396.56 and 883.13

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Solution

The third proportional to 396.56 and 883.13 is: 1,966.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.56 : 883.13 = 883.13 : x
  2. Step 2: Convert to fraction form
    396.56/883.13 = 883.13/x
  3. Step 3: Cross multiply
    396.56x = 883.13 × 883.13
  4. Step 4: Simplify right side
    396.56x = 779,909.77
  5. Step 5: Solve for x
    x = 779,909.77/396.56
  6. Step 6: Final answer
    x = 1,966.68

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.