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Finding the Fourth Proportional to 437,704.20, 656,556.30 and 431,799.30

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Solution

The fourth proportional to 437,704.20, 656,556.30 and 431,799.30 is: 647,698.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,704.20 : 656,556.30 = 431,799.30 : x
  2. Step 2: Convert to fraction form
    437,704.20/656,556.30 = 431,799.30/x
  3. Step 3: Cross multiply
    437,704.20x = 656,556.30 × 431,799.30
  4. Step 4: Simplify right side
    437,704.20x = 283,500,550,750.59
  5. Step 5: Solve for x
    x = 283,500,550,750.59/437,704.20
  6. Step 6: Final answer
    x = 647,698.95

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1.5x scale

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.