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Finding the Fourth Proportional to 548,731.20, 823,096.80 and 323,860.80

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Solution

The fourth proportional to 548,731.20, 823,096.80 and 323,860.80 is: 485,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,731.20 : 823,096.80 = 323,860.80 : x
  2. Step 2: Convert to fraction form
    548,731.20/823,096.80 = 323,860.80/x
  3. Step 3: Cross multiply
    548,731.20x = 823,096.80 × 323,860.80
  4. Step 4: Simplify right side
    548,731.20x = 266,568,788,125.44
  5. Step 5: Solve for x
    x = 266,568,788,125.44/548,731.20
  6. Step 6: Final answer
    x = 485,791.20

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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.