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Finding the Fourth Proportional to 647,078.59, 970,620.27 and 197,797.72

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Solution

The fourth proportional to 647,078.59, 970,620.27 and 197,797.72 is: 296,697.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,078.59 : 970,620.27 = 197,797.72 : x
  2. Step 2: Convert to fraction form
    647,078.59/970,620.27 = 197,797.72/x
  3. Step 3: Cross multiply
    647,078.59x = 970,620.27 × 197,797.72
  4. Step 4: Simplify right side
    647,078.59x = 191,986,471,538.68
  5. Step 5: Solve for x
    x = 191,986,471,538.68/647,078.59
  6. Step 6: Final answer
    x = 296,697.30

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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.