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Finding the Third Proportional to 674.44 and 910.41

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Solution

The third proportional to 674.44 and 910.41 is: 1,228.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.44 : 910.41 = 910.41 : x
  2. Step 2: Convert to fraction form
    674.44/910.41 = 910.41/x
  3. Step 3: Cross multiply
    674.44x = 910.41 × 910.41
  4. Step 4: Simplify right side
    674.44x = 828,839.54
  5. Step 5: Solve for x
    x = 828,839.54/674.44
  6. Step 6: Final answer
    x = 1,228.93

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.