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Finding the Fourth Proportional to 257,344.44, 355,269.76 and 199,854.80

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Solution

The fourth proportional to 257,344.44, 355,269.76 and 199,854.80 is: 275,904.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,344.44 : 355,269.76 = 199,854.80 : x
  2. Step 2: Convert to fraction form
    257,344.44/355,269.76 = 199,854.80/x
  3. Step 3: Cross multiply
    257,344.44x = 355,269.76 × 199,854.80
  4. Step 4: Simplify right side
    257,344.44x = 71,002,366,830.85
  5. Step 5: Solve for x
    x = 71,002,366,830.85/257,344.44
  6. Step 6: Final answer
    x = 275,904.03

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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.