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Finding the Fourth Proportional to 263,393.70, 363,499.77 and 148,691.78

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Solution

The fourth proportional to 263,393.70, 363,499.77 and 148,691.78 is: 205,203.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,393.70 : 363,499.77 = 148,691.78 : x
  2. Step 2: Convert to fraction form
    263,393.70/363,499.77 = 148,691.78/x
  3. Step 3: Cross multiply
    263,393.70x = 363,499.77 × 148,691.78
  4. Step 4: Simplify right side
    263,393.70x = 54,049,425,269.93
  5. Step 5: Solve for x
    x = 54,049,425,269.93/263,393.70
  6. Step 6: Final answer
    x = 205,203.94

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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.