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Finding the Fourth Proportional to 263,515.80, 395,532.90 and 130,546.20

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Solution

The fourth proportional to 263,515.80, 395,532.90 and 130,546.20 is: 195,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,515.80 : 395,532.90 = 130,546.20 : x
  2. Step 2: Convert to fraction form
    263,515.80/395,532.90 = 130,546.20/x
  3. Step 3: Cross multiply
    263,515.80x = 395,532.90 × 130,546.20
  4. Step 4: Simplify right side
    263,515.80x = 51,635,317,069.98
  5. Step 5: Solve for x
    x = 51,635,317,069.98/263,515.80
  6. Step 6: Final answer
    x = 195,947.71

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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.