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Finding the Fourth Proportional to 3,433.57, 5,150.35 and 836.51

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Solution

The fourth proportional to 3,433.57, 5,150.35 and 836.51 is: 1,254.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433.57 : 5,150.35 = 836.51 : x
  2. Step 2: Convert to fraction form
    3,433.57/5,150.35 = 836.51/x
  3. Step 3: Cross multiply
    3,433.57x = 5,150.35 × 836.51
  4. Step 4: Simplify right side
    3,433.57x = 4,308,293.53
  5. Step 5: Solve for x
    x = 4,308,293.53/3,433.57
  6. Step 6: Final answer
    x = 1,254.76

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Similar ratio
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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.