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Finding the Fourth Proportional to 283,967.73, 391,882.86 and 154,908.42

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Solution

The fourth proportional to 283,967.73, 391,882.86 and 154,908.42 is: 213,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,967.73 : 391,882.86 = 154,908.42 : x
  2. Step 2: Convert to fraction form
    283,967.73/391,882.86 = 154,908.42/x
  3. Step 3: Cross multiply
    283,967.73x = 391,882.86 × 154,908.42
  4. Step 4: Simplify right side
    283,967.73x = 60,705,954,667.68
  5. Step 5: Solve for x
    x = 60,705,954,667.68/283,967.73
  6. Step 6: Final answer
    x = 213,777.65

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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.