Home / 279,918-386,424.75-193,942.17

Finding the Fourth Proportional to 279,918, 386,424.75 and 193,942.17

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Solution

The fourth proportional to 279,918, 386,424.75 and 193,942.17 is: 267,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,918 : 386,424.75 = 193,942.17 : x
  2. Step 2: Convert to fraction form
    279,918/386,424.75 = 193,942.17/x
  3. Step 3: Cross multiply
    279,918x = 386,424.75 × 193,942.17
  4. Step 4: Simplify right side
    279,918x = 74,944,054,556.71
  5. Step 5: Solve for x
    x = 74,944,054,556.71/279,918
  6. Step 6: Final answer
    x = 267,735.75

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1.5x scale

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.