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Finding the Fourth Proportional to 494,636.40, 741,911.40 and 162,212.40

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Solution

The fourth proportional to 494,636.40, 741,911.40 and 162,212.40 is: 243,304.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,636.40 : 741,911.40 = 162,212.40 : x
  2. Step 2: Convert to fraction form
    494,636.40/741,911.40 = 162,212.40/x
  3. Step 3: Cross multiply
    494,636.40x = 741,911.40 × 162,212.40
  4. Step 4: Simplify right side
    494,636.40x = 120,347,228,781.36
  5. Step 5: Solve for x
    x = 120,347,228,781.36/494,636.40
  6. Step 6: Final answer
    x = 243,304.43

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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.