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Finding the Fourth Proportional to 404,092.20, 606,211.20 and 203,908.80

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Solution

The fourth proportional to 404,092.20, 606,211.20 and 203,908.80 is: 305,899.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,092.20 : 606,211.20 = 203,908.80 : x
  2. Step 2: Convert to fraction form
    404,092.20/606,211.20 = 203,908.80/x
  3. Step 3: Cross multiply
    404,092.20x = 606,211.20 × 203,908.80
  4. Step 4: Simplify right side
    404,092.20x = 123,611,798,338.56
  5. Step 5: Solve for x
    x = 123,611,798,338.56/404,092.20
  6. Step 6: Final answer
    x = 305,899.99

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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.