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Finding the Fourth Proportional to 366,388.80, 548,546.40 and 324,916.80

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Solution

The fourth proportional to 366,388.80, 548,546.40 and 324,916.80 is: 486,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,388.80 : 548,546.40 = 324,916.80 : x
  2. Step 2: Convert to fraction form
    366,388.80/548,546.40 = 324,916.80/x
  3. Step 3: Cross multiply
    366,388.80x = 548,546.40 × 324,916.80
  4. Step 4: Simplify right side
    366,388.80x = 178,231,940,939.52
  5. Step 5: Solve for x
    x = 178,231,940,939.52/366,388.80
  6. Step 6: Final answer
    x = 486,455.76

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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.