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Finding the Fourth Proportional to 548,069.20, 821,326.20 and 404,796.40

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Solution

The fourth proportional to 548,069.20, 821,326.20 and 404,796.40 is: 606,620.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,069.20 : 821,326.20 = 404,796.40 : x
  2. Step 2: Convert to fraction form
    548,069.20/821,326.20 = 404,796.40/x
  3. Step 3: Cross multiply
    548,069.20x = 821,326.20 × 404,796.40
  4. Step 4: Simplify right side
    548,069.20x = 332,469,888,985.68
  5. Step 5: Solve for x
    x = 332,469,888,985.68/548,069.20
  6. Step 6: Final answer
    x = 606,620.28

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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.