Home / 354,629.25-531,644.49-164,991.72

Finding the Fourth Proportional to 354,629.25, 531,644.49 and 164,991.72

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Solution

The fourth proportional to 354,629.25, 531,644.49 and 164,991.72 is: 247,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,629.25 : 531,644.49 = 164,991.72 : x
  2. Step 2: Convert to fraction form
    354,629.25/531,644.49 = 164,991.72/x
  3. Step 3: Cross multiply
    354,629.25x = 531,644.49 × 164,991.72
  4. Step 4: Simplify right side
    354,629.25x = 87,716,938,833.62
  5. Step 5: Solve for x
    x = 87,716,938,833.62/354,629.25
  6. Step 6: Final answer
    x = 247,348.29

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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.