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Finding the Fourth Proportional to 366,940.05, 550,410.08 and 330,198.45

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Solution

The fourth proportional to 366,940.05, 550,410.08 and 330,198.45 is: 495,297.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,940.05 : 550,410.08 = 330,198.45 : x
  2. Step 2: Convert to fraction form
    366,940.05/550,410.08 = 330,198.45/x
  3. Step 3: Cross multiply
    366,940.05x = 550,410.08 × 330,198.45
  4. Step 4: Simplify right side
    366,940.05x = 181,744,553,629.38
  5. Step 5: Solve for x
    x = 181,744,553,629.38/366,940.05
  6. Step 6: Final answer
    x = 495,297.68

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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.