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Finding the Fourth Proportional to 263,012.70, 394,519.05 and 263,012.70

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Solution

The fourth proportional to 263,012.70, 394,519.05 and 263,012.70 is: 394,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,012.70 : 394,519.05 = 263,012.70 : x
  2. Step 2: Convert to fraction form
    263,012.70/394,519.05 = 263,012.70/x
  3. Step 3: Cross multiply
    263,012.70x = 394,519.05 × 263,012.70
  4. Step 4: Simplify right side
    263,012.70x = 103,763,520,541.94
  5. Step 5: Solve for x
    x = 103,763,520,541.94/263,012.70
  6. Step 6: Final answer
    x = 394,519.05

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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.