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Finding the Fourth Proportional to 404,203.80, 605,766.89 and 191,028.26

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Solution

The fourth proportional to 404,203.80, 605,766.89 and 191,028.26 is: 286,287.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,203.80 : 605,766.89 = 191,028.26 : x
  2. Step 2: Convert to fraction form
    404,203.80/605,766.89 = 191,028.26/x
  3. Step 3: Cross multiply
    404,203.80x = 605,766.89 × 191,028.26
  4. Step 4: Simplify right side
    404,203.80x = 115,718,592,472.33
  5. Step 5: Solve for x
    x = 115,718,592,472.33/404,203.80
  6. Step 6: Final answer
    x = 286,287.74

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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.