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Finding the Third Proportional to 376,965 and 819,378

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Solution

The third proportional to 376,965 and 819,378 is: 1,781,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,965 : 819,378 = 819,378 : x
  2. Step 2: Convert to fraction form
    376,965/819,378 = 819,378/x
  3. Step 3: Cross multiply
    376,965x = 819,378 × 819,378
  4. Step 4: Simplify right side
    376,965x = 671,380,306,884
  5. Step 5: Solve for x
    x = 671,380,306,884/376,965
  6. Step 6: Final answer
    x = 1,781,014.97

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.