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Finding the Fourth Proportional to 366,431.20, 548,869.20 and 304,223.20

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Solution

The fourth proportional to 366,431.20, 548,869.20 and 304,223.20 is: 455,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,431.20 : 548,869.20 = 304,223.20 : x
  2. Step 2: Convert to fraction form
    366,431.20/548,869.20 = 304,223.20/x
  3. Step 3: Cross multiply
    366,431.20x = 548,869.20 × 304,223.20
  4. Step 4: Simplify right side
    366,431.20x = 166,978,744,405.44
  5. Step 5: Solve for x
    x = 166,978,744,405.44/366,431.20
  6. Step 6: Final answer
    x = 455,689.21

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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.