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Finding the Fourth Proportional to 1,611.97, 2,223.88 and 1,052.26

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Solution

The fourth proportional to 1,611.97, 2,223.88 and 1,052.26 is: 1,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.97 : 2,223.88 = 1,052.26 : x
  2. Step 2: Convert to fraction form
    1,611.97/2,223.88 = 1,052.26/x
  3. Step 3: Cross multiply
    1,611.97x = 2,223.88 × 1,052.26
  4. Step 4: Simplify right side
    1,611.97x = 2,340,091.78
  5. Step 5: Solve for x
    x = 2,340,091.78/1,611.97
  6. Step 6: Final answer
    x = 1,451.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.