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Finding the Fourth Proportional to 539,362.35, 809,404.65 and 223,819.56

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Solution

The fourth proportional to 539,362.35, 809,404.65 and 223,819.56 is: 335,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,362.35 : 809,404.65 = 223,819.56 : x
  2. Step 2: Convert to fraction form
    539,362.35/809,404.65 = 223,819.56/x
  3. Step 3: Cross multiply
    539,362.35x = 809,404.65 × 223,819.56
  4. Step 4: Simplify right side
    539,362.35x = 181,160,592,624.95
  5. Step 5: Solve for x
    x = 181,160,592,624.95/539,362.35
  6. Step 6: Final answer
    x = 335,879.20

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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.