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Finding the Third Proportional to 397,618 and 854,563

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Solution

The third proportional to 397,618 and 854,563 is: 1,836,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,618 : 854,563 = 854,563 : x
  2. Step 2: Convert to fraction form
    397,618/854,563 = 854,563/x
  3. Step 3: Cross multiply
    397,618x = 854,563 × 854,563
  4. Step 4: Simplify right side
    397,618x = 730,277,920,969
  5. Step 5: Solve for x
    x = 730,277,920,969/397,618
  6. Step 6: Final answer
    x = 1,836,631.95

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.