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Finding the Third Proportional to 591,820 and 1,278,225

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Solution

The third proportional to 591,820 and 1,278,225 is: 2,760,736.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,820 : 1,278,225 = 1,278,225 : x
  2. Step 2: Convert to fraction form
    591,820/1,278,225 = 1,278,225/x
  3. Step 3: Cross multiply
    591,820x = 1,278,225 × 1,278,225
  4. Step 4: Simplify right side
    591,820x = 1,633,859,150,625
  5. Step 5: Solve for x
    x = 1,633,859,150,625/591,820
  6. Step 6: Final answer
    x = 2,760,736.63

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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.