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Finding the Fourth Proportional to 366,962.20, 550,443.30 and 307,913.20

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Solution

The fourth proportional to 366,962.20, 550,443.30 and 307,913.20 is: 461,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,962.20 : 550,443.30 = 307,913.20 : x
  2. Step 2: Convert to fraction form
    366,962.20/550,443.30 = 307,913.20/x
  3. Step 3: Cross multiply
    366,962.20x = 550,443.30 × 307,913.20
  4. Step 4: Simplify right side
    366,962.20x = 169,488,757,921.56
  5. Step 5: Solve for x
    x = 169,488,757,921.56/366,962.20
  6. Step 6: Final answer
    x = 461,869.80

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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.