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Finding the Third Proportional to 481.50 and 705.75

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Solution

The third proportional to 481.50 and 705.75 is: 1,034.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.50 : 705.75 = 705.75 : x
  2. Step 2: Convert to fraction form
    481.50/705.75 = 705.75/x
  3. Step 3: Cross multiply
    481.50x = 705.75 × 705.75
  4. Step 4: Simplify right side
    481.50x = 498,083.06
  5. Step 5: Solve for x
    x = 498,083.06/481.50
  6. Step 6: Final answer
    x = 1,034.44

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.