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Finding the Fourth Proportional to 263,257.80, 394,886.70 and 174,611.40

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Solution

The fourth proportional to 263,257.80, 394,886.70 and 174,611.40 is: 261,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,257.80 : 394,886.70 = 174,611.40 : x
  2. Step 2: Convert to fraction form
    263,257.80/394,886.70 = 174,611.40/x
  3. Step 3: Cross multiply
    263,257.80x = 394,886.70 × 174,611.40
  4. Step 4: Simplify right side
    263,257.80x = 68,951,719,528.38
  5. Step 5: Solve for x
    x = 68,951,719,528.38/263,257.80
  6. Step 6: Final answer
    x = 261,917.10

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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.