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Finding the Third Proportional to 818,781 and 1,776,720

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Solution

The third proportional to 818,781 and 1,776,720 is: 3,855,406.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,781 : 1,776,720 = 1,776,720 : x
  2. Step 2: Convert to fraction form
    818,781/1,776,720 = 1,776,720/x
  3. Step 3: Cross multiply
    818,781x = 1,776,720 × 1,776,720
  4. Step 4: Simplify right side
    818,781x = 3,156,733,958,400
  5. Step 5: Solve for x
    x = 3,156,733,958,400/818,781
  6. Step 6: Final answer
    x = 3,855,406.95

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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.