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Finding the Fourth Proportional to 483,817.61, 667,685.43 and 266,042.85

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Solution

The fourth proportional to 483,817.61, 667,685.43 and 266,042.85 is: 367,148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,817.61 : 667,685.43 = 266,042.85 : x
  2. Step 2: Convert to fraction form
    483,817.61/667,685.43 = 266,042.85/x
  3. Step 3: Cross multiply
    483,817.61x = 667,685.43 × 266,042.85
  4. Step 4: Simplify right side
    483,817.61x = 177,632,934,700.68
  5. Step 5: Solve for x
    x = 177,632,934,700.68/483,817.61
  6. Step 6: Final answer
    x = 367,148.56

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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.