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Finding the Fourth Proportional to 539,391.80, 809,087.70 and 223,763.96

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Solution

The fourth proportional to 539,391.80, 809,087.70 and 223,763.96 is: 335,645.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,391.80 : 809,087.70 = 223,763.96 : x
  2. Step 2: Convert to fraction form
    539,391.80/809,087.70 = 223,763.96/x
  3. Step 3: Cross multiply
    539,391.80x = 809,087.70 × 223,763.96
  4. Step 4: Simplify right side
    539,391.80x = 181,044,667,739.29
  5. Step 5: Solve for x
    x = 181,044,667,739.29/539,391.80
  6. Step 6: Final answer
    x = 335,645.94

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Similar ratio
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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.