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Finding the Fourth Proportional to 403,201.62, 605,176.02 and 203,661.85

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Solution

The fourth proportional to 403,201.62, 605,176.02 and 203,661.85 is: 305,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,201.62 : 605,176.02 = 203,661.85 : x
  2. Step 2: Convert to fraction form
    403,201.62/605,176.02 = 203,661.85/x
  3. Step 3: Cross multiply
    403,201.62x = 605,176.02 × 203,661.85
  4. Step 4: Simplify right side
    403,201.62x = 123,251,267,808.84
  5. Step 5: Solve for x
    x = 123,251,267,808.84/403,201.62
  6. Step 6: Final answer
    x = 305,681.48

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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.