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Finding the Fourth Proportional to 543,302.20, 814,370.10 and 206,212.60

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Solution

The fourth proportional to 543,302.20, 814,370.10 and 206,212.60 is: 309,097.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,302.20 : 814,370.10 = 206,212.60 : x
  2. Step 2: Convert to fraction form
    543,302.20/814,370.10 = 206,212.60/x
  3. Step 3: Cross multiply
    543,302.20x = 814,370.10 × 206,212.60
  4. Step 4: Simplify right side
    543,302.20x = 167,933,375,683.26
  5. Step 5: Solve for x
    x = 167,933,375,683.26/543,302.20
  6. Step 6: Final answer
    x = 309,097.54

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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.