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Finding the Fourth Proportional to 436,571.25, 654,936.19 and 180,404.43

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Solution

The fourth proportional to 436,571.25, 654,936.19 and 180,404.43 is: 270,639.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,571.25 : 654,936.19 = 180,404.43 : x
  2. Step 2: Convert to fraction form
    436,571.25/654,936.19 = 180,404.43/x
  3. Step 3: Cross multiply
    436,571.25x = 654,936.19 × 180,404.43
  4. Step 4: Simplify right side
    436,571.25x = 118,153,392,899.48
  5. Step 5: Solve for x
    x = 118,153,392,899.48/436,571.25
  6. Step 6: Final answer
    x = 270,639.43

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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.