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Finding the Fourth Proportional to 263,236.50, 394,854.75 and 66,244.50

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Solution

The fourth proportional to 263,236.50, 394,854.75 and 66,244.50 is: 99,366.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,236.50 : 394,854.75 = 66,244.50 : x
  2. Step 2: Convert to fraction form
    263,236.50/394,854.75 = 66,244.50/x
  3. Step 3: Cross multiply
    263,236.50x = 394,854.75 × 66,244.50
  4. Step 4: Simplify right side
    263,236.50x = 26,156,955,486.38
  5. Step 5: Solve for x
    x = 26,156,955,486.38/263,236.50
  6. Step 6: Final answer
    x = 99,366.75

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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.