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Finding the Fourth Proportional to 263,906.30, 395,860.26 and 64,226.72

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Solution

The fourth proportional to 263,906.30, 395,860.26 and 64,226.72 is: 96,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,906.30 : 395,860.26 = 64,226.72 : x
  2. Step 2: Convert to fraction form
    263,906.30/395,860.26 = 64,226.72/x
  3. Step 3: Cross multiply
    263,906.30x = 395,860.26 × 64,226.72
  4. Step 4: Simplify right side
    263,906.30x = 25,424,806,078.15
  5. Step 5: Solve for x
    x = 25,424,806,078.15/263,906.30
  6. Step 6: Final answer
    x = 96,340.28

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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.