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Finding the Third Proportional to 481,405.50 and 672,999.75

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Solution

The third proportional to 481,405.50 and 672,999.75 is: 940,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,405.50 : 672,999.75 = 672,999.75 : x
  2. Step 2: Convert to fraction form
    481,405.50/672,999.75 = 672,999.75/x
  3. Step 3: Cross multiply
    481,405.50x = 672,999.75 × 672,999.75
  4. Step 4: Simplify right side
    481,405.50x = 452,928,663,500.06
  5. Step 5: Solve for x
    x = 452,928,663,500.06/481,405.50
  6. Step 6: Final answer
    x = 940,846.47

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.