Home / 279,195.39-418,634.19-190,556.28

Finding the Fourth Proportional to 279,195.39, 418,634.19 and 190,556.28

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Solution

The fourth proportional to 279,195.39, 418,634.19 and 190,556.28 is: 285,725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,195.39 : 418,634.19 = 190,556.28 : x
  2. Step 2: Convert to fraction form
    279,195.39/418,634.19 = 190,556.28/x
  3. Step 3: Cross multiply
    279,195.39x = 418,634.19 × 190,556.28
  4. Step 4: Simplify right side
    279,195.39x = 79,773,373,927.21
  5. Step 5: Solve for x
    x = 79,773,373,927.21/279,195.39
  6. Step 6: Final answer
    x = 285,725.97

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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.