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Finding the Fourth Proportional to 327,538.73, 490,520.78 and 186,870.89

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Solution

The fourth proportional to 327,538.73, 490,520.78 and 186,870.89 is: 279,857.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,538.73 : 490,520.78 = 186,870.89 : x
  2. Step 2: Convert to fraction form
    327,538.73/490,520.78 = 186,870.89/x
  3. Step 3: Cross multiply
    327,538.73x = 490,520.78 × 186,870.89
  4. Step 4: Simplify right side
    327,538.73x = 91,664,053,787.74
  5. Step 5: Solve for x
    x = 91,664,053,787.74/327,538.73
  6. Step 6: Final answer
    x = 279,857.14

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1.5x scale

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.