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Finding the Fourth Proportional to 3,196.90, 4,800.30 and 1,738.90

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Solution

The fourth proportional to 3,196.90, 4,800.30 and 1,738.90 is: 2,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,196.90 : 4,800.30 = 1,738.90 : x
  2. Step 2: Convert to fraction form
    3,196.90/4,800.30 = 1,738.90/x
  3. Step 3: Cross multiply
    3,196.90x = 4,800.30 × 1,738.90
  4. Step 4: Simplify right side
    3,196.90x = 8,347,241.67
  5. Step 5: Solve for x
    x = 8,347,241.67/3,196.90
  6. Step 6: Final answer
    x = 2,611.04

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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.