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Finding the Fourth Proportional to 3,989,215.27, 5,983,822.64 and 997,399.27

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Solution

The fourth proportional to 3,989,215.27, 5,983,822.64 and 997,399.27 is: 1,496,098.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,215.27 : 5,983,822.64 = 997,399.27 : x
  2. Step 2: Convert to fraction form
    3,989,215.27/5,983,822.64 = 997,399.27/x
  3. Step 3: Cross multiply
    3,989,215.27x = 5,983,822.64 × 997,399.27
  4. Step 4: Simplify right side
    3,989,215.27x = 5,968,260,327,958.48
  5. Step 5: Solve for x
    x = 5,968,260,327,958.48/3,989,215.27
  6. Step 6: Final answer
    x = 1,496,098.84

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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.