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Finding the Fourth Proportional to 3,410.82, 4,706.55 and 1,919.25

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Solution

The fourth proportional to 3,410.82, 4,706.55 and 1,919.25 is: 2,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.82 : 4,706.55 = 1,919.25 : x
  2. Step 2: Convert to fraction form
    3,410.82/4,706.55 = 1,919.25/x
  3. Step 3: Cross multiply
    3,410.82x = 4,706.55 × 1,919.25
  4. Step 4: Simplify right side
    3,410.82x = 9,033,046.09
  5. Step 5: Solve for x
    x = 9,033,046.09/3,410.82
  6. Step 6: Final answer
    x = 2,648.35

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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.