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Finding the Fourth Proportional to 539,387.87, 809,578.73 and 273,336.89

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Solution

The fourth proportional to 539,387.87, 809,578.73 and 273,336.89 is: 410,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,387.87 : 809,578.73 = 273,336.89 : x
  2. Step 2: Convert to fraction form
    539,387.87/809,578.73 = 273,336.89/x
  3. Step 3: Cross multiply
    539,387.87x = 809,578.73 × 273,336.89
  4. Step 4: Simplify right side
    539,387.87x = 221,287,728,903.80
  5. Step 5: Solve for x
    x = 221,287,728,903.80/539,387.87
  6. Step 6: Final answer
    x = 410,257.15

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1.5x scale

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.