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Finding the Fourth Proportional to 576,061.20, 863,362.80 and 220,600.80

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Solution

The fourth proportional to 576,061.20, 863,362.80 and 220,600.80 is: 330,622.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,061.20 : 863,362.80 = 220,600.80 : x
  2. Step 2: Convert to fraction form
    576,061.20/863,362.80 = 220,600.80/x
  3. Step 3: Cross multiply
    576,061.20x = 863,362.80 × 220,600.80
  4. Step 4: Simplify right side
    576,061.20x = 190,458,524,370.24
  5. Step 5: Solve for x
    x = 190,458,524,370.24/576,061.20
  6. Step 6: Final answer
    x = 330,622.03

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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.