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Finding the Third Proportional to 480.38 and 722.50

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Solution

The third proportional to 480.38 and 722.50 is: 1,086.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.38 : 722.50 = 722.50 : x
  2. Step 2: Convert to fraction form
    480.38/722.50 = 722.50/x
  3. Step 3: Cross multiply
    480.38x = 722.50 × 722.50
  4. Step 4: Simplify right side
    480.38x = 522,006.25
  5. Step 5: Solve for x
    x = 522,006.25/480.38
  6. Step 6: Final answer
    x = 1,086.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.