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Finding the Fourth Proportional to 363,161.97, 542,419.25 and 328,916.58

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Solution

The fourth proportional to 363,161.97, 542,419.25 and 328,916.58 is: 491,270.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,161.97 : 542,419.25 = 328,916.58 : x
  2. Step 2: Convert to fraction form
    363,161.97/542,419.25 = 328,916.58/x
  3. Step 3: Cross multiply
    363,161.97x = 542,419.25 × 328,916.58
  4. Step 4: Simplify right side
    363,161.97x = 178,410,682,991.58
  5. Step 5: Solve for x
    x = 178,410,682,991.58/363,161.97
  6. Step 6: Final answer
    x = 491,270.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.