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Finding the Fourth Proportional to 543,351.20, 814,443.60 and 206,261.60

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Solution

The fourth proportional to 543,351.20, 814,443.60 and 206,261.60 is: 309,171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,351.20 : 814,443.60 = 206,261.60 : x
  2. Step 2: Convert to fraction form
    543,351.20/814,443.60 = 206,261.60/x
  3. Step 3: Cross multiply
    543,351.20x = 814,443.60 × 206,261.60
  4. Step 4: Simplify right side
    543,351.20x = 167,988,440,045.76
  5. Step 5: Solve for x
    x = 167,988,440,045.76/543,351.20
  6. Step 6: Final answer
    x = 309,171.01

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1.5x scale

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.