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Finding the Third Proportional to 667,570 and 1,479,278

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Solution

The third proportional to 667,570 and 1,479,278 is: 3,277,953.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,570 : 1,479,278 = 1,479,278 : x
  2. Step 2: Convert to fraction form
    667,570/1,479,278 = 1,479,278/x
  3. Step 3: Cross multiply
    667,570x = 1,479,278 × 1,479,278
  4. Step 4: Simplify right side
    667,570x = 2,188,263,401,284
  5. Step 5: Solve for x
    x = 2,188,263,401,284/667,570
  6. Step 6: Final answer
    x = 3,277,953.47

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.