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Finding the Third Proportional to 434 and 767

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Solution

The third proportional to 434 and 767 is: 1,355.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    434 : 767 = 767 : x
  2. Step 2: Convert to fraction form
    434/767 = 767/x
  3. Step 3: Cross multiply
    434x = 767 × 767
  4. Step 4: Simplify right side
    434x = 588,289
  5. Step 5: Solve for x
    x = 588,289/434
  6. Step 6: Final answer
    x = 1,355.50

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.