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Finding the Third Proportional to 621,722 and 1,341,454

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Solution

The third proportional to 621,722 and 1,341,454 is: 2,894,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,722 : 1,341,454 = 1,341,454 : x
  2. Step 2: Convert to fraction form
    621,722/1,341,454 = 1,341,454/x
  3. Step 3: Cross multiply
    621,722x = 1,341,454 × 1,341,454
  4. Step 4: Simplify right side
    621,722x = 1,799,498,834,116
  5. Step 5: Solve for x
    x = 1,799,498,834,116/621,722
  6. Step 6: Final answer
    x = 2,894,378.57

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.