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Finding the Third Proportional to 626,872 and 1,358,720

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Solution

The third proportional to 626,872 and 1,358,720 is: 2,944,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,872 : 1,358,720 = 1,358,720 : x
  2. Step 2: Convert to fraction form
    626,872/1,358,720 = 1,358,720/x
  3. Step 3: Cross multiply
    626,872x = 1,358,720 × 1,358,720
  4. Step 4: Simplify right side
    626,872x = 1,846,120,038,400
  5. Step 5: Solve for x
    x = 1,846,120,038,400/626,872
  6. Step 6: Final answer
    x = 2,944,971.28

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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.