Home / 639,016.14-958,723.12-189,739.37

Finding the Fourth Proportional to 639,016.14, 958,723.12 and 189,739.37

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Solution

The fourth proportional to 639,016.14, 958,723.12 and 189,739.37 is: 284,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,016.14 : 958,723.12 = 189,739.37 : x
  2. Step 2: Convert to fraction form
    639,016.14/958,723.12 = 189,739.37/x
  3. Step 3: Cross multiply
    639,016.14x = 958,723.12 × 189,739.37
  4. Step 4: Simplify right side
    639,016.14x = 181,907,518,034.40
  5. Step 5: Solve for x
    x = 181,907,518,034.40/639,016.14
  6. Step 6: Final answer
    x = 284,668.11

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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.