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Finding the Fourth Proportional to 367,568.80, 515,121.20 and 367,568.80

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Solution

The fourth proportional to 367,568.80, 515,121.20 and 367,568.80 is: 515,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,568.80 : 515,121.20 = 367,568.80 : x
  2. Step 2: Convert to fraction form
    367,568.80/515,121.20 = 367,568.80/x
  3. Step 3: Cross multiply
    367,568.80x = 515,121.20 × 367,568.80
  4. Step 4: Simplify right side
    367,568.80x = 189,342,481,338.56
  5. Step 5: Solve for x
    x = 189,342,481,338.56/367,568.80
  6. Step 6: Final answer
    x = 515,121.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.