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Finding the Fourth Proportional to 451,241.60, 622,634.46 and 257,560.88

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Solution

The fourth proportional to 451,241.60, 622,634.46 and 257,560.88 is: 355,388.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,241.60 : 622,634.46 = 257,560.88 : x
  2. Step 2: Convert to fraction form
    451,241.60/622,634.46 = 257,560.88/x
  3. Step 3: Cross multiply
    451,241.60x = 622,634.46 × 257,560.88
  4. Step 4: Simplify right side
    451,241.60x = 160,366,279,435.93
  5. Step 5: Solve for x
    x = 160,366,279,435.93/451,241.60
  6. Step 6: Final answer
    x = 355,388.95

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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.