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Finding the Fourth Proportional to 4,480.97, 6,721.46 and 1,360.99

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Solution

The fourth proportional to 4,480.97, 6,721.46 and 1,360.99 is: 2,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.97 : 6,721.46 = 1,360.99 : x
  2. Step 2: Convert to fraction form
    4,480.97/6,721.46 = 1,360.99/x
  3. Step 3: Cross multiply
    4,480.97x = 6,721.46 × 1,360.99
  4. Step 4: Simplify right side
    4,480.97x = 9,147,816.24
  5. Step 5: Solve for x
    x = 9,147,816.24/4,480.97
  6. Step 6: Final answer
    x = 2,041.48

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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.