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Finding the Fourth Proportional to 451,358.99, 622,512.22 and 396,794.50

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Solution

The fourth proportional to 451,358.99, 622,512.22 and 396,794.50 is: 547,257.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,358.99 : 622,512.22 = 396,794.50 : x
  2. Step 2: Convert to fraction form
    451,358.99/622,512.22 = 396,794.50/x
  3. Step 3: Cross multiply
    451,358.99x = 622,512.22 × 396,794.50
  4. Step 4: Simplify right side
    451,358.99x = 247,009,422,530.52
  5. Step 5: Solve for x
    x = 247,009,422,530.52/451,358.99
  6. Step 6: Final answer
    x = 547,257.12

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1.5x scale

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.