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Finding the Fourth Proportional to 362,912.60, 543,712.80 and 222,507.20

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Solution

The fourth proportional to 362,912.60, 543,712.80 and 222,507.20 is: 333,358.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,912.60 : 543,712.80 = 222,507.20 : x
  2. Step 2: Convert to fraction form
    362,912.60/543,712.80 = 222,507.20/x
  3. Step 3: Cross multiply
    362,912.60x = 543,712.80 × 222,507.20
  4. Step 4: Simplify right side
    362,912.60x = 120,980,012,732.16
  5. Step 5: Solve for x
    x = 120,980,012,732.16/362,912.60
  6. Step 6: Final answer
    x = 333,358.54

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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.