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Finding the Fourth Proportional to 539,272.80, 809,200.80 and 223,761.60

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Solution

The fourth proportional to 539,272.80, 809,200.80 and 223,761.60 is: 335,763.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,272.80 : 809,200.80 = 223,761.60 : x
  2. Step 2: Convert to fraction form
    539,272.80/809,200.80 = 223,761.60/x
  3. Step 3: Cross multiply
    539,272.80x = 809,200.80 × 223,761.60
  4. Step 4: Simplify right side
    539,272.80x = 181,068,065,729.28
  5. Step 5: Solve for x
    x = 181,068,065,729.28/539,272.80
  6. Step 6: Final answer
    x = 335,763.39

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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.