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Finding the Fourth Proportional to 454,940.07, 682,490.42 and 155,350.46

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Solution

The fourth proportional to 454,940.07, 682,490.42 and 155,350.46 is: 233,053.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,940.07 : 682,490.42 = 155,350.46 : x
  2. Step 2: Convert to fraction form
    454,940.07/682,490.42 = 155,350.46/x
  3. Step 3: Cross multiply
    454,940.07x = 682,490.42 × 155,350.46
  4. Step 4: Simplify right side
    454,940.07x = 106,025,196,503.39
  5. Step 5: Solve for x
    x = 106,025,196,503.39/454,940.07
  6. Step 6: Final answer
    x = 233,053.11

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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.