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Finding the Fourth Proportional to 259,570.60, 389,586.30 and 222,245.80

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Solution

The fourth proportional to 259,570.60, 389,586.30 and 222,245.80 is: 333,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,570.60 : 389,586.30 = 222,245.80 : x
  2. Step 2: Convert to fraction form
    259,570.60/389,586.30 = 222,245.80/x
  3. Step 3: Cross multiply
    259,570.60x = 389,586.30 × 222,245.80
  4. Step 4: Simplify right side
    259,570.60x = 86,583,918,912.54
  5. Step 5: Solve for x
    x = 86,583,918,912.54/259,570.60
  6. Step 6: Final answer
    x = 333,565.97

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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.