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Finding the Fourth Proportional to 371,591.26, 512,793.12 and 201,826.60

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Solution

The fourth proportional to 371,591.26, 512,793.12 and 201,826.60 is: 278,519.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,591.26 : 512,793.12 = 201,826.60 : x
  2. Step 2: Convert to fraction form
    371,591.26/512,793.12 = 201,826.60/x
  3. Step 3: Cross multiply
    371,591.26x = 512,793.12 × 201,826.60
  4. Step 4: Simplify right side
    371,591.26x = 103,495,291,912.99
  5. Step 5: Solve for x
    x = 103,495,291,912.99/371,591.26
  6. Step 6: Final answer
    x = 278,519.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.