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Finding the Third Proportional to 396,984 and 936,348

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Solution

The third proportional to 396,984 and 936,348 is: 2,208,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,984 : 936,348 = 936,348 : x
  2. Step 2: Convert to fraction form
    396,984/936,348 = 936,348/x
  3. Step 3: Cross multiply
    396,984x = 936,348 × 936,348
  4. Step 4: Simplify right side
    396,984x = 876,747,577,104
  5. Step 5: Solve for x
    x = 876,747,577,104/396,984
  6. Step 6: Final answer
    x = 2,208,521.19

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.