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Finding the Fourth Proportional to 539,266.60, 809,418.30 and 273,327.40

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Solution

The fourth proportional to 539,266.60, 809,418.30 and 273,327.40 is: 410,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,266.60 : 809,418.30 = 273,327.40 : x
  2. Step 2: Convert to fraction form
    539,266.60/809,418.30 = 273,327.40/x
  3. Step 3: Cross multiply
    539,266.60x = 809,418.30 × 273,327.40
  4. Step 4: Simplify right side
    539,266.60x = 221,236,199,451.42
  5. Step 5: Solve for x
    x = 221,236,199,451.42/539,266.60
  6. Step 6: Final answer
    x = 410,253.85

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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.