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Finding the Fourth Proportional to 494,660.40, 741,947.40 and 162,236.40

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Solution

The fourth proportional to 494,660.40, 741,947.40 and 162,236.40 is: 243,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,660.40 : 741,947.40 = 162,236.40 : x
  2. Step 2: Convert to fraction form
    494,660.40/741,947.40 = 162,236.40/x
  3. Step 3: Cross multiply
    494,660.40x = 741,947.40 × 162,236.40
  4. Step 4: Simplify right side
    494,660.40x = 120,370,875,165.36
  5. Step 5: Solve for x
    x = 120,370,875,165.36/494,660.40
  6. Step 6: Final answer
    x = 243,340.43

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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.