Home / 414,530.91-621,796.37-115,011.54

Finding the Fourth Proportional to 414,530.91, 621,796.37 and 115,011.54

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Solution

The fourth proportional to 414,530.91, 621,796.37 and 115,011.54 is: 172,517.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,530.91 : 621,796.37 = 115,011.54 : x
  2. Step 2: Convert to fraction form
    414,530.91/621,796.37 = 115,011.54/x
  3. Step 3: Cross multiply
    414,530.91x = 621,796.37 × 115,011.54
  4. Step 4: Simplify right side
    414,530.91x = 71,513,757,505.05
  5. Step 5: Solve for x
    x = 71,513,757,505.05/414,530.91
  6. Step 6: Final answer
    x = 172,517.31

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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.