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Finding the Fourth Proportional to 303,527.28, 418,786.20 and 196,058.16

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Solution

The fourth proportional to 303,527.28, 418,786.20 and 196,058.16 is: 270,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,527.28 : 418,786.20 = 196,058.16 : x
  2. Step 2: Convert to fraction form
    303,527.28/418,786.20 = 196,058.16/x
  3. Step 3: Cross multiply
    303,527.28x = 418,786.20 × 196,058.16
  4. Step 4: Simplify right side
    303,527.28x = 82,106,451,805.39
  5. Step 5: Solve for x
    x = 82,106,451,805.39/303,527.28
  6. Step 6: Final answer
    x = 270,507.65

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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.