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Finding the Third Proportional to 220,879.25 and 480,864.50

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Solution

The third proportional to 220,879.25 and 480,864.50 is: 1,046,864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,879.25 : 480,864.50 = 480,864.50 : x
  2. Step 2: Convert to fraction form
    220,879.25/480,864.50 = 480,864.50/x
  3. Step 3: Cross multiply
    220,879.25x = 480,864.50 × 480,864.50
  4. Step 4: Simplify right side
    220,879.25x = 231,230,667,360.25
  5. Step 5: Solve for x
    x = 231,230,667,360.25/220,879.25
  6. Step 6: Final answer
    x = 1,046,864.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.