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Finding the Third Proportional to 851,386 and 1,818,439

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Solution

The third proportional to 851,386 and 1,818,439 is: 3,883,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,386 : 1,818,439 = 1,818,439 : x
  2. Step 2: Convert to fraction form
    851,386/1,818,439 = 1,818,439/x
  3. Step 3: Cross multiply
    851,386x = 1,818,439 × 1,818,439
  4. Step 4: Simplify right side
    851,386x = 3,306,720,396,721
  5. Step 5: Solve for x
    x = 3,306,720,396,721/851,386
  6. Step 6: Final answer
    x = 3,883,926.21

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.