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Finding the Third Proportional to 722 and 1,028

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Solution

The third proportional to 722 and 1,028 is: 1,463.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    722 : 1,028 = 1,028 : x
  2. Step 2: Convert to fraction form
    722/1,028 = 1,028/x
  3. Step 3: Cross multiply
    722x = 1,028 × 1,028
  4. Step 4: Simplify right side
    722x = 1,056,784
  5. Step 5: Solve for x
    x = 1,056,784/722
  6. Step 6: Final answer
    x = 1,463.69

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