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Finding the Third Proportional to 426.94 and 606.28

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Solution

The third proportional to 426.94 and 606.28 is: 860.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.94 : 606.28 = 606.28 : x
  2. Step 2: Convert to fraction form
    426.94/606.28 = 606.28/x
  3. Step 3: Cross multiply
    426.94x = 606.28 × 606.28
  4. Step 4: Simplify right side
    426.94x = 367,576.95
  5. Step 5: Solve for x
    x = 367,576.95/426.94
  6. Step 6: Final answer
    x = 860.96

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.