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Finding the Fourth Proportional to 404,098.20, 606,220.20 and 203,914.80

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Solution

The fourth proportional to 404,098.20, 606,220.20 and 203,914.80 is: 305,908.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,098.20 : 606,220.20 = 203,914.80 : x
  2. Step 2: Convert to fraction form
    404,098.20/606,220.20 = 203,914.80/x
  3. Step 3: Cross multiply
    404,098.20x = 606,220.20 × 203,914.80
  4. Step 4: Simplify right side
    404,098.20x = 123,617,270,838.96
  5. Step 5: Solve for x
    x = 123,617,270,838.96/404,098.20
  6. Step 6: Final answer
    x = 305,908.99

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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.