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Finding the Third Proportional to 427,181 and 909,577

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Solution

The third proportional to 427,181 and 909,577 is: 1,936,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,181 : 909,577 = 909,577 : x
  2. Step 2: Convert to fraction form
    427,181/909,577 = 909,577/x
  3. Step 3: Cross multiply
    427,181x = 909,577 × 909,577
  4. Step 4: Simplify right side
    427,181x = 827,330,318,929
  5. Step 5: Solve for x
    x = 827,330,318,929/427,181
  6. Step 6: Final answer
    x = 1,936,720.78

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.