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Finding the Fourth Proportional to 573,201.90, 860,143.05 and 218,251.80

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Solution

The fourth proportional to 573,201.90, 860,143.05 and 218,251.80 is: 327,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,201.90 : 860,143.05 = 218,251.80 : x
  2. Step 2: Convert to fraction form
    573,201.90/860,143.05 = 218,251.80/x
  3. Step 3: Cross multiply
    573,201.90x = 860,143.05 × 218,251.80
  4. Step 4: Simplify right side
    573,201.90x = 187,727,768,919.99
  5. Step 5: Solve for x
    x = 187,727,768,919.99/573,201.90
  6. Step 6: Final answer
    x = 327,507.23

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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.