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Finding the Third Proportional to 274,129 and 411,194

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Solution

The third proportional to 274,129 and 411,194 is: 616,791.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,129 : 411,194 = 411,194 : x
  2. Step 2: Convert to fraction form
    274,129/411,194 = 411,194/x
  3. Step 3: Cross multiply
    274,129x = 411,194 × 411,194
  4. Step 4: Simplify right side
    274,129x = 169,080,505,636
  5. Step 5: Solve for x
    x = 169,080,505,636/274,129
  6. Step 6: Final answer
    x = 616,791.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.