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Finding the Third Proportional to 174,940 and 278,497

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Solution

The third proportional to 174,940 and 278,497 is: 443,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,940 : 278,497 = 278,497 : x
  2. Step 2: Convert to fraction form
    174,940/278,497 = 278,497/x
  3. Step 3: Cross multiply
    174,940x = 278,497 × 278,497
  4. Step 4: Simplify right side
    174,940x = 77,560,579,009
  5. Step 5: Solve for x
    x = 77,560,579,009/174,940
  6. Step 6: Final answer
    x = 443,355.32

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.