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Finding the Third Proportional to 396,645 and 604,266

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Solution

The third proportional to 396,645 and 604,266 is: 920,564.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,645 : 604,266 = 604,266 : x
  2. Step 2: Convert to fraction form
    396,645/604,266 = 604,266/x
  3. Step 3: Cross multiply
    396,645x = 604,266 × 604,266
  4. Step 4: Simplify right side
    396,645x = 365,137,398,756
  5. Step 5: Solve for x
    x = 365,137,398,756/396,645
  6. Step 6: Final answer
    x = 920,564.73

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.