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Finding the Fourth Proportional to 483,930.67, 667,806.84 and 266,137.47

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Solution

The fourth proportional to 483,930.67, 667,806.84 and 266,137.47 is: 367,260.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,930.67 : 667,806.84 = 266,137.47 : x
  2. Step 2: Convert to fraction form
    483,930.67/667,806.84 = 266,137.47/x
  3. Step 3: Cross multiply
    483,930.67x = 667,806.84 × 266,137.47
  4. Step 4: Simplify right side
    483,930.67x = 177,728,422,846.30
  5. Step 5: Solve for x
    x = 177,728,422,846.30/483,930.67
  6. Step 6: Final answer
    x = 367,260.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.