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Finding the Fourth Proportional to 362,406.20, 543,609.30 and 267,927.80

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Solution

The fourth proportional to 362,406.20, 543,609.30 and 267,927.80 is: 401,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,406.20 : 543,609.30 = 267,927.80 : x
  2. Step 2: Convert to fraction form
    362,406.20/543,609.30 = 267,927.80/x
  3. Step 3: Cross multiply
    362,406.20x = 543,609.30 × 267,927.80
  4. Step 4: Simplify right side
    362,406.20x = 145,648,043,808.54
  5. Step 5: Solve for x
    x = 145,648,043,808.54/362,406.20
  6. Step 6: Final answer
    x = 401,891.70

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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.