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Finding the Fourth Proportional to 281,883, 389,179.98 and 251,616.54

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Solution

The fourth proportional to 281,883, 389,179.98 and 251,616.54 is: 347,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,883 : 389,179.98 = 251,616.54 : x
  2. Step 2: Convert to fraction form
    281,883/389,179.98 = 251,616.54/x
  3. Step 3: Cross multiply
    281,883x = 389,179.98 × 251,616.54
  4. Step 4: Simplify right side
    281,883x = 97,924,120,004.87
  5. Step 5: Solve for x
    x = 97,924,120,004.87/281,883
  6. Step 6: Final answer
    x = 347,392.78

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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.