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Finding the Fourth Proportional to 573,189.30, 859,792.12 and 218,222.80

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Solution

The fourth proportional to 573,189.30, 859,792.12 and 218,222.80 is: 327,337.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,189.30 : 859,792.12 = 218,222.80 : x
  2. Step 2: Convert to fraction form
    573,189.30/859,792.12 = 218,222.80/x
  3. Step 3: Cross multiply
    573,189.30x = 859,792.12 × 218,222.80
  4. Step 4: Simplify right side
    573,189.30x = 187,626,241,149.30
  5. Step 5: Solve for x
    x = 187,626,241,149.30/573,189.30
  6. Step 6: Final answer
    x = 327,337.31

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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.