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Finding the Fourth Proportional to 264,220.80, 396,382.40 and 132,892.80

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Solution

The fourth proportional to 264,220.80, 396,382.40 and 132,892.80 is: 199,364.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,220.80 : 396,382.40 = 132,892.80 : x
  2. Step 2: Convert to fraction form
    264,220.80/396,382.40 = 132,892.80/x
  3. Step 3: Cross multiply
    264,220.80x = 396,382.40 × 132,892.80
  4. Step 4: Simplify right side
    264,220.80x = 52,676,367,006.72
  5. Step 5: Solve for x
    x = 52,676,367,006.72/264,220.80
  6. Step 6: Final answer
    x = 199,364.95

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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.