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Finding the Third Proportional to 193,940 and 411,356

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Solution

The third proportional to 193,940 and 411,356 is: 872,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,940 : 411,356 = 411,356 : x
  2. Step 2: Convert to fraction form
    193,940/411,356 = 411,356/x
  3. Step 3: Cross multiply
    193,940x = 411,356 × 411,356
  4. Step 4: Simplify right side
    193,940x = 169,213,758,736
  5. Step 5: Solve for x
    x = 169,213,758,736/193,940
  6. Step 6: Final answer
    x = 872,505.72

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.