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Finding the Fourth Proportional to 362,990.60, 543,449.10 and 325,665.80

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Solution

The fourth proportional to 362,990.60, 543,449.10 and 325,665.80 is: 487,568.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,990.60 : 543,449.10 = 325,665.80 : x
  2. Step 2: Convert to fraction form
    362,990.60/543,449.10 = 325,665.80/x
  3. Step 3: Cross multiply
    362,990.60x = 543,449.10 × 325,665.80
  4. Step 4: Simplify right side
    362,990.60x = 176,982,785,910.78
  5. Step 5: Solve for x
    x = 176,982,785,910.78/362,990.60
  6. Step 6: Final answer
    x = 487,568.51

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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.