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Finding the Fourth Proportional to 539,496.20, 809,568.30 and 223,920.20

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Solution

The fourth proportional to 539,496.20, 809,568.30 and 223,920.20 is: 336,014.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,496.20 : 809,568.30 = 223,920.20 : x
  2. Step 2: Convert to fraction form
    539,496.20/809,568.30 = 223,920.20/x
  3. Step 3: Cross multiply
    539,496.20x = 809,568.30 × 223,920.20
  4. Step 4: Simplify right side
    539,496.20x = 181,278,695,649.66
  5. Step 5: Solve for x
    x = 181,278,695,649.66/539,496.20
  6. Step 6: Final answer
    x = 336,014.78

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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.