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Finding the Fourth Proportional to 511,236.54, 766,826.90 and 156,250.44

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Solution

The fourth proportional to 511,236.54, 766,826.90 and 156,250.44 is: 234,367.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,236.54 : 766,826.90 = 156,250.44 : x
  2. Step 2: Convert to fraction form
    511,236.54/766,826.90 = 156,250.44/x
  3. Step 3: Cross multiply
    511,236.54x = 766,826.90 × 156,250.44
  4. Step 4: Simplify right side
    511,236.54x = 119,817,040,528.84
  5. Step 5: Solve for x
    x = 119,817,040,528.84/511,236.54
  6. Step 6: Final answer
    x = 234,367.13

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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.