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Finding the Fourth Proportional to 362,512.80, 543,769.20 and 325,771.20

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Solution

The fourth proportional to 362,512.80, 543,769.20 and 325,771.20 is: 488,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,512.80 : 543,769.20 = 325,771.20 : x
  2. Step 2: Convert to fraction form
    362,512.80/543,769.20 = 325,771.20/x
  3. Step 3: Cross multiply
    362,512.80x = 543,769.20 × 325,771.20
  4. Step 4: Simplify right side
    362,512.80x = 177,144,344,807.04
  5. Step 5: Solve for x
    x = 177,144,344,807.04/362,512.80
  6. Step 6: Final answer
    x = 488,656.80

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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.