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Finding the Fourth Proportional to 474,591.26, 654,633.60 and 331,299.02

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Solution

The fourth proportional to 474,591.26, 654,633.60 and 331,299.02 is: 456,981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,591.26 : 654,633.60 = 331,299.02 : x
  2. Step 2: Convert to fraction form
    474,591.26/654,633.60 = 331,299.02/x
  3. Step 3: Cross multiply
    474,591.26x = 654,633.60 × 331,299.02
  4. Step 4: Simplify right side
    474,591.26x = 216,879,466,865.90
  5. Step 5: Solve for x
    x = 216,879,466,865.90/474,591.26
  6. Step 6: Final answer
    x = 456,981.59

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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.