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Finding the Third Proportional to 265 and 479

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Solution

The third proportional to 265 and 479 is: 865.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    265 : 479 = 479 : x
  2. Step 2: Convert to fraction form
    265/479 = 479/x
  3. Step 3: Cross multiply
    265x = 479 × 479
  4. Step 4: Simplify right side
    265x = 229,441
  5. Step 5: Solve for x
    x = 229,441/265
  6. Step 6: Final answer
    x = 865.82

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.