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Finding the Third Proportional to 836,412 and 1,780,713

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Solution

The third proportional to 836,412 and 1,780,713 is: 3,791,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,412 : 1,780,713 = 1,780,713 : x
  2. Step 2: Convert to fraction form
    836,412/1,780,713 = 1,780,713/x
  3. Step 3: Cross multiply
    836,412x = 1,780,713 × 1,780,713
  4. Step 4: Simplify right side
    836,412x = 3,170,938,788,369
  5. Step 5: Solve for x
    x = 3,170,938,788,369/836,412
  6. Step 6: Final answer
    x = 3,791,120.63

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.