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Finding the Fourth Proportional to 313,660.80, 469,972.80 and 267,004.80

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Solution

The fourth proportional to 313,660.80, 469,972.80 and 267,004.80 is: 400,065.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,660.80 : 469,972.80 = 267,004.80 : x
  2. Step 2: Convert to fraction form
    313,660.80/469,972.80 = 267,004.80/x
  3. Step 3: Cross multiply
    313,660.80x = 469,972.80 × 267,004.80
  4. Step 4: Simplify right side
    313,660.80x = 125,484,993,469.44
  5. Step 5: Solve for x
    x = 125,484,993,469.44/313,660.80
  6. Step 6: Final answer
    x = 400,065.91

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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.