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Finding the Fourth Proportional to 338,405.70, 467,049.60 and 195,137.76

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Solution

The fourth proportional to 338,405.70, 467,049.60 and 195,137.76 is: 269,318.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,405.70 : 467,049.60 = 195,137.76 : x
  2. Step 2: Convert to fraction form
    338,405.70/467,049.60 = 195,137.76/x
  3. Step 3: Cross multiply
    338,405.70x = 467,049.60 × 195,137.76
  4. Step 4: Simplify right side
    338,405.70x = 91,139,012,752.90
  5. Step 5: Solve for x
    x = 91,139,012,752.90/338,405.70
  6. Step 6: Final answer
    x = 269,318.79

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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.