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Finding the Third Proportional to 351,916 and 767,340

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Solution

The third proportional to 351,916 and 767,340 is: 1,673,156.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,916 : 767,340 = 767,340 : x
  2. Step 2: Convert to fraction form
    351,916/767,340 = 767,340/x
  3. Step 3: Cross multiply
    351,916x = 767,340 × 767,340
  4. Step 4: Simplify right side
    351,916x = 588,810,675,600
  5. Step 5: Solve for x
    x = 588,810,675,600/351,916
  6. Step 6: Final answer
    x = 1,673,156.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.