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Finding the Fourth Proportional to 427,568.68, 641,450.22 and 227,783.80

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Solution

The fourth proportional to 427,568.68, 641,450.22 and 227,783.80 is: 341,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,568.68 : 641,450.22 = 227,783.80 : x
  2. Step 2: Convert to fraction form
    427,568.68/641,450.22 = 227,783.80/x
  3. Step 3: Cross multiply
    427,568.68x = 641,450.22 × 227,783.80
  4. Step 4: Simplify right side
    427,568.68x = 146,111,968,622.44
  5. Step 5: Solve for x
    x = 146,111,968,622.44/427,568.68
  6. Step 6: Final answer
    x = 341,727.48

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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.