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Finding the Fourth Proportional to 445,797.94, 668,541.39 and 196,343.86

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Solution

The fourth proportional to 445,797.94, 668,541.39 and 196,343.86 is: 294,447.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,797.94 : 668,541.39 = 196,343.86 : x
  2. Step 2: Convert to fraction form
    445,797.94/668,541.39 = 196,343.86/x
  3. Step 3: Cross multiply
    445,797.94x = 668,541.39 × 196,343.86
  4. Step 4: Simplify right side
    445,797.94x = 131,263,997,082.37
  5. Step 5: Solve for x
    x = 131,263,997,082.37/445,797.94
  6. Step 6: Final answer
    x = 294,447.29

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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.