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Finding the Third Proportional to 688,191 and 1,512,522

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Solution

The third proportional to 688,191 and 1,512,522 is: 3,324,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,191 : 1,512,522 = 1,512,522 : x
  2. Step 2: Convert to fraction form
    688,191/1,512,522 = 1,512,522/x
  3. Step 3: Cross multiply
    688,191x = 1,512,522 × 1,512,522
  4. Step 4: Simplify right side
    688,191x = 2,287,722,800,484
  5. Step 5: Solve for x
    x = 2,287,722,800,484/688,191
  6. Step 6: Final answer
    x = 3,324,255.62

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.