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Finding the Fourth Proportional to 5,644,865.28, 7,789,968 and 3,066,565.44

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Solution

The fourth proportional to 5,644,865.28, 7,789,968 and 3,066,565.44 is: 4,231,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644,865.28 : 7,789,968 = 3,066,565.44 : x
  2. Step 2: Convert to fraction form
    5,644,865.28/7,789,968 = 3,066,565.44/x
  3. Step 3: Cross multiply
    5,644,865.28x = 7,789,968 × 3,066,565.44
  4. Step 4: Simplify right side
    5,644,865.28x = 23,888,446,647,505.92
  5. Step 5: Solve for x
    x = 23,888,446,647,505.92/5,644,865.28
  6. Step 6: Final answer
    x = 4,231,889.60

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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.