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Finding the Fourth Proportional to 360,906.40, 541,359.60 and 271,676.80

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Solution

The fourth proportional to 360,906.40, 541,359.60 and 271,676.80 is: 407,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,906.40 : 541,359.60 = 271,676.80 : x
  2. Step 2: Convert to fraction form
    360,906.40/541,359.60 = 271,676.80/x
  3. Step 3: Cross multiply
    360,906.40x = 541,359.60 × 271,676.80
  4. Step 4: Simplify right side
    360,906.40x = 147,074,843,777.28
  5. Step 5: Solve for x
    x = 147,074,843,777.28/360,906.40
  6. Step 6: Final answer
    x = 407,515.20

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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.