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Finding the Fourth Proportional to 366,978.20, 550,812.90 and 227,010.20

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Solution

The fourth proportional to 366,978.20, 550,812.90 and 227,010.20 is: 340,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,978.20 : 550,812.90 = 227,010.20 : x
  2. Step 2: Convert to fraction form
    366,978.20/550,812.90 = 227,010.20/x
  3. Step 3: Cross multiply
    366,978.20x = 550,812.90 × 227,010.20
  4. Step 4: Simplify right side
    366,978.20x = 125,040,146,591.58
  5. Step 5: Solve for x
    x = 125,040,146,591.58/366,978.20
  6. Step 6: Final answer
    x = 340,729.09

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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.