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Finding the Fourth Proportional to 483,843.78, 667,721.53 and 266,069.07

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Solution

The fourth proportional to 483,843.78, 667,721.53 and 266,069.07 is: 367,184.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,843.78 : 667,721.53 = 266,069.07 : x
  2. Step 2: Convert to fraction form
    483,843.78/667,721.53 = 266,069.07/x
  3. Step 3: Cross multiply
    483,843.78x = 667,721.53 × 266,069.07
  4. Step 4: Simplify right side
    483,843.78x = 177,660,045,342.03
  5. Step 5: Solve for x
    x = 177,660,045,342.03/483,843.78
  6. Step 6: Final answer
    x = 367,184.73

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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.