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Finding the Fourth Proportional to 445,114.80, 667,542.60 and 245,530.80

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Solution

The fourth proportional to 445,114.80, 667,542.60 and 245,530.80 is: 368,224.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,114.80 : 667,542.60 = 245,530.80 : x
  2. Step 2: Convert to fraction form
    445,114.80/667,542.60 = 245,530.80/x
  3. Step 3: Cross multiply
    445,114.80x = 667,542.60 × 245,530.80
  4. Step 4: Simplify right side
    445,114.80x = 163,902,268,612.08
  5. Step 5: Solve for x
    x = 163,902,268,612.08/445,114.80
  6. Step 6: Final answer
    x = 368,224.71

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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.