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Finding the Fourth Proportional to 573,236.80, 859,855.20 and 218,132.80

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Solution

The fourth proportional to 573,236.80, 859,855.20 and 218,132.80 is: 327,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,236.80 : 859,855.20 = 218,132.80 : x
  2. Step 2: Convert to fraction form
    573,236.80/859,855.20 = 218,132.80/x
  3. Step 3: Cross multiply
    573,236.80x = 859,855.20 × 218,132.80
  4. Step 4: Simplify right side
    573,236.80x = 187,562,622,370.56
  5. Step 5: Solve for x
    x = 187,562,622,370.56/573,236.80
  6. Step 6: Final answer
    x = 327,199.20

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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.