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Finding the Third Proportional to 176,352 and 391,940

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Solution

The third proportional to 176,352 and 391,940 is: 871,081.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,352 : 391,940 = 391,940 : x
  2. Step 2: Convert to fraction form
    176,352/391,940 = 391,940/x
  3. Step 3: Cross multiply
    176,352x = 391,940 × 391,940
  4. Step 4: Simplify right side
    176,352x = 153,616,963,600
  5. Step 5: Solve for x
    x = 153,616,963,600/176,352
  6. Step 6: Final answer
    x = 871,081.49

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.