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Finding the Third Proportional to 412,879.50 and 634,819.50

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Solution

The third proportional to 412,879.50 and 634,819.50 is: 976,061.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,879.50 : 634,819.50 = 634,819.50 : x
  2. Step 2: Convert to fraction form
    412,879.50/634,819.50 = 634,819.50/x
  3. Step 3: Cross multiply
    412,879.50x = 634,819.50 × 634,819.50
  4. Step 4: Simplify right side
    412,879.50x = 402,995,797,580.25
  5. Step 5: Solve for x
    x = 402,995,797,580.25/412,879.50
  6. Step 6: Final answer
    x = 976,061.53

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.