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Finding the Fourth Proportional to 367,930.80, 551,896.20 and 305,722.80

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Solution

The fourth proportional to 367,930.80, 551,896.20 and 305,722.80 is: 458,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,930.80 : 551,896.20 = 305,722.80 : x
  2. Step 2: Convert to fraction form
    367,930.80/551,896.20 = 305,722.80/x
  3. Step 3: Cross multiply
    367,930.80x = 551,896.20 × 305,722.80
  4. Step 4: Simplify right side
    367,930.80x = 168,727,251,573.36
  5. Step 5: Solve for x
    x = 168,727,251,573.36/367,930.80
  6. Step 6: Final answer
    x = 458,584.20

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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.