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Finding the Third Proportional to 739,378 and 1,513,721

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Solution

The third proportional to 739,378 and 1,513,721 is: 3,099,025.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,378 : 1,513,721 = 1,513,721 : x
  2. Step 2: Convert to fraction form
    739,378/1,513,721 = 1,513,721/x
  3. Step 3: Cross multiply
    739,378x = 1,513,721 × 1,513,721
  4. Step 4: Simplify right side
    739,378x = 2,291,351,265,841
  5. Step 5: Solve for x
    x = 2,291,351,265,841/739,378
  6. Step 6: Final answer
    x = 3,099,025.49

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.