Home / 278,450.26-419,732.10-262,194.10

Finding the Fourth Proportional to 278,450.26, 419,732.10 and 262,194.10

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Solution

The fourth proportional to 278,450.26, 419,732.10 and 262,194.10 is: 395,227.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,450.26 : 419,732.10 = 262,194.10 : x
  2. Step 2: Convert to fraction form
    278,450.26/419,732.10 = 262,194.10/x
  3. Step 3: Cross multiply
    278,450.26x = 419,732.10 × 262,194.10
  4. Step 4: Simplify right side
    278,450.26x = 110,051,278,889.64
  5. Step 5: Solve for x
    x = 110,051,278,889.64/278,450.26
  6. Step 6: Final answer
    x = 395,227.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.