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Finding the Fourth Proportional to 416,769.96, 575,139.78 and 225,778.92

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Solution

The fourth proportional to 416,769.96, 575,139.78 and 225,778.92 is: 311,573.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,769.96 : 575,139.78 = 225,778.92 : x
  2. Step 2: Convert to fraction form
    416,769.96/575,139.78 = 225,778.92/x
  3. Step 3: Cross multiply
    416,769.96x = 575,139.78 × 225,778.92
  4. Step 4: Simplify right side
    416,769.96x = 129,854,438,377.44
  5. Step 5: Solve for x
    x = 129,854,438,377.44/416,769.96
  6. Step 6: Final answer
    x = 311,573.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.