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Finding the Fourth Proportional to 356,357.10, 491,772.96 and 195,217.98

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Solution

The fourth proportional to 356,357.10, 491,772.96 and 195,217.98 is: 269,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,357.10 : 491,772.96 = 195,217.98 : x
  2. Step 2: Convert to fraction form
    356,357.10/491,772.96 = 195,217.98/x
  3. Step 3: Cross multiply
    356,357.10x = 491,772.96 × 195,217.98
  4. Step 4: Simplify right side
    356,357.10x = 96,002,923,869.82
  5. Step 5: Solve for x
    x = 96,002,923,869.82/356,357.10
  6. Step 6: Final answer
    x = 269,400.90

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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.