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Finding the Fourth Proportional to 539,191.60, 809,305.80 and 273,252.40

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Solution

The fourth proportional to 539,191.60, 809,305.80 and 273,252.40 is: 410,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,191.60 : 809,305.80 = 273,252.40 : x
  2. Step 2: Convert to fraction form
    539,191.60/809,305.80 = 273,252.40/x
  3. Step 3: Cross multiply
    539,191.60x = 809,305.80 × 273,252.40
  4. Step 4: Simplify right side
    539,191.60x = 221,144,752,183.92
  5. Step 5: Solve for x
    x = 221,144,752,183.92/539,191.60
  6. Step 6: Final answer
    x = 410,141.32

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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.