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Finding the Third Proportional to 221,258 and 341,691

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Solution

The third proportional to 221,258 and 341,691 is: 527,676.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,258 : 341,691 = 341,691 : x
  2. Step 2: Convert to fraction form
    221,258/341,691 = 341,691/x
  3. Step 3: Cross multiply
    221,258x = 341,691 × 341,691
  4. Step 4: Simplify right side
    221,258x = 116,752,739,481
  5. Step 5: Solve for x
    x = 116,752,739,481/221,258
  6. Step 6: Final answer
    x = 527,676.92

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.