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Finding the Fourth Proportional to 2,922.14, 4,383.19 and 730.86

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Solution

The fourth proportional to 2,922.14, 4,383.19 and 730.86 is: 1,096.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.14 : 4,383.19 = 730.86 : x
  2. Step 2: Convert to fraction form
    2,922.14/4,383.19 = 730.86/x
  3. Step 3: Cross multiply
    2,922.14x = 4,383.19 × 730.86
  4. Step 4: Simplify right side
    2,922.14x = 3,203,494.59
  5. Step 5: Solve for x
    x = 3,203,494.59/2,922.14
  6. Step 6: Final answer
    x = 1,096.28

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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.