Home / 279,949.82-386,378.64-194,033.52

Finding the Fourth Proportional to 279,949.82, 386,378.64 and 194,033.52

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Solution

The fourth proportional to 279,949.82, 386,378.64 and 194,033.52 is: 267,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,949.82 : 386,378.64 = 194,033.52 : x
  2. Step 2: Convert to fraction form
    279,949.82/386,378.64 = 194,033.52/x
  3. Step 3: Cross multiply
    279,949.82x = 386,378.64 × 194,033.52
  4. Step 4: Simplify right side
    279,949.82x = 74,970,407,572.01
  5. Step 5: Solve for x
    x = 74,970,407,572.01/279,949.82
  6. Step 6: Final answer
    x = 267,799.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.