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Finding the Fourth Proportional to 543,233.20, 814,266.60 and 206,143.60

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Solution

The fourth proportional to 543,233.20, 814,266.60 and 206,143.60 is: 308,994.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,233.20 : 814,266.60 = 206,143.60 : x
  2. Step 2: Convert to fraction form
    543,233.20/814,266.60 = 206,143.60/x
  3. Step 3: Cross multiply
    543,233.20x = 814,266.60 × 206,143.60
  4. Step 4: Simplify right side
    543,233.20x = 167,855,848,283.76
  5. Step 5: Solve for x
    x = 167,855,848,283.76/543,233.20
  6. Step 6: Final answer
    x = 308,994.09

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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.