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Finding the Fourth Proportional to 511,231.20, 766,846.80 and 174,651.90

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Solution

The fourth proportional to 511,231.20, 766,846.80 and 174,651.90 is: 261,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,231.20 : 766,846.80 = 174,651.90 : x
  2. Step 2: Convert to fraction form
    511,231.20/766,846.80 = 174,651.90/x
  3. Step 3: Cross multiply
    511,231.20x = 766,846.80 × 174,651.90
  4. Step 4: Simplify right side
    511,231.20x = 133,931,250,628.92
  5. Step 5: Solve for x
    x = 133,931,250,628.92/511,231.20
  6. Step 6: Final answer
    x = 261,977.85

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Similar ratio
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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.