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Finding the Fourth Proportional to 313,704.80, 470,038.80 and 267,048.80

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Solution

The fourth proportional to 313,704.80, 470,038.80 and 267,048.80 is: 400,131.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,704.80 : 470,038.80 = 267,048.80 : x
  2. Step 2: Convert to fraction form
    313,704.80/470,038.80 = 267,048.80/x
  3. Step 3: Cross multiply
    313,704.80x = 470,038.80 × 267,048.80
  4. Step 4: Simplify right side
    313,704.80x = 125,523,297,493.44
  5. Step 5: Solve for x
    x = 125,523,297,493.44/313,704.80
  6. Step 6: Final answer
    x = 400,131.90

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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.