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Finding the Fourth Proportional to 3,722,964.28, 5,583,781.64 and 990,527.38

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Solution

The fourth proportional to 3,722,964.28, 5,583,781.64 and 990,527.38 is: 1,485,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722,964.28 : 5,583,781.64 = 990,527.38 : x
  2. Step 2: Convert to fraction form
    3,722,964.28/5,583,781.64 = 990,527.38/x
  3. Step 3: Cross multiply
    3,722,964.28x = 5,583,781.64 × 990,527.38
  4. Step 4: Simplify right side
    3,722,964.28x = 5,530,888,598,361.30
  5. Step 5: Solve for x
    x = 5,530,888,598,361.30/3,722,964.28
  6. Step 6: Final answer
    x = 1,485,614.20

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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.