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Finding the Fourth Proportional to 436,778.46, 655,171.29 and 137,252.34

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Solution

The fourth proportional to 436,778.46, 655,171.29 and 137,252.34 is: 205,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,778.46 : 655,171.29 = 137,252.34 : x
  2. Step 2: Convert to fraction form
    436,778.46/655,171.29 = 137,252.34/x
  3. Step 3: Cross multiply
    436,778.46x = 655,171.29 × 137,252.34
  4. Step 4: Simplify right side
    436,778.46x = 89,923,792,653.32
  5. Step 5: Solve for x
    x = 89,923,792,653.32/436,778.46
  6. Step 6: Final answer
    x = 205,879.64

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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.