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Finding the Fourth Proportional to 362,989.60, 543,447.60 and 325,664.80

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Solution

The fourth proportional to 362,989.60, 543,447.60 and 325,664.80 is: 487,567.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,989.60 : 543,447.60 = 325,664.80 : x
  2. Step 2: Convert to fraction form
    362,989.60/543,447.60 = 325,664.80/x
  3. Step 3: Cross multiply
    362,989.60x = 543,447.60 × 325,664.80
  4. Step 4: Simplify right side
    362,989.60x = 176,981,753,964.48
  5. Step 5: Solve for x
    x = 176,981,753,964.48/362,989.60
  6. Step 6: Final answer
    x = 487,567.01

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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.