Home / 414,004.05-621,006.08-189,617.85

Finding the Fourth Proportional to 414,004.05, 621,006.08 and 189,617.85

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Solution

The fourth proportional to 414,004.05, 621,006.08 and 189,617.85 is: 284,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,004.05 : 621,006.08 = 189,617.85 : x
  2. Step 2: Convert to fraction form
    414,004.05/621,006.08 = 189,617.85/x
  3. Step 3: Cross multiply
    414,004.05x = 621,006.08 × 189,617.85
  4. Step 4: Simplify right side
    414,004.05x = 117,753,836,778.44
  5. Step 5: Solve for x
    x = 117,753,836,778.44/414,004.05
  6. Step 6: Final answer
    x = 284,426.78

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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.