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Finding the Fourth Proportional to 3,404.96, 4,696.46 and 3,290.66

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Solution

The fourth proportional to 3,404.96, 4,696.46 and 3,290.66 is: 4,538.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404.96 : 4,696.46 = 3,290.66 : x
  2. Step 2: Convert to fraction form
    3,404.96/4,696.46 = 3,290.66/x
  3. Step 3: Cross multiply
    3,404.96x = 4,696.46 × 3,290.66
  4. Step 4: Simplify right side
    3,404.96x = 15,454,453.06
  5. Step 5: Solve for x
    x = 15,454,453.06/3,404.96
  6. Step 6: Final answer
    x = 4,538.81

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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.