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Finding the Fourth Proportional to 403,571.88, 605,208.78 and 175,839.30

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Solution

The fourth proportional to 403,571.88, 605,208.78 and 175,839.30 is: 263,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,571.88 : 605,208.78 = 175,839.30 : x
  2. Step 2: Convert to fraction form
    403,571.88/605,208.78 = 175,839.30/x
  3. Step 3: Cross multiply
    403,571.88x = 605,208.78 × 175,839.30
  4. Step 4: Simplify right side
    403,571.88x = 106,419,488,229.05
  5. Step 5: Solve for x
    x = 106,419,488,229.05/403,571.88
  6. Step 6: Final answer
    x = 263,694.01

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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.