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Finding the Fourth Proportional to 2,884.16, 4,326.24 and 936.56

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Solution

The fourth proportional to 2,884.16, 4,326.24 and 936.56 is: 1,404.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.16 : 4,326.24 = 936.56 : x
  2. Step 2: Convert to fraction form
    2,884.16/4,326.24 = 936.56/x
  3. Step 3: Cross multiply
    2,884.16x = 4,326.24 × 936.56
  4. Step 4: Simplify right side
    2,884.16x = 4,051,783.33
  5. Step 5: Solve for x
    x = 4,051,783.33/2,884.16
  6. Step 6: Final answer
    x = 1,404.84

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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.