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Finding the Fourth Proportional to 360,025.80, 538,872.30 and 255,049.80

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Solution

The fourth proportional to 360,025.80, 538,872.30 and 255,049.80 is: 381,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,025.80 : 538,872.30 = 255,049.80 : x
  2. Step 2: Convert to fraction form
    360,025.80/538,872.30 = 255,049.80/x
  3. Step 3: Cross multiply
    360,025.80x = 538,872.30 × 255,049.80
  4. Step 4: Simplify right side
    360,025.80x = 137,439,272,340.54
  5. Step 5: Solve for x
    x = 137,439,272,340.54/360,025.80
  6. Step 6: Final answer
    x = 381,748.40

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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.