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Finding the Fourth Proportional to 263,451.80, 394,302.90 and 263,451.80

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Solution

The fourth proportional to 263,451.80, 394,302.90 and 263,451.80 is: 394,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,451.80 : 394,302.90 = 263,451.80 : x
  2. Step 2: Convert to fraction form
    263,451.80/394,302.90 = 263,451.80/x
  3. Step 3: Cross multiply
    263,451.80x = 394,302.90 × 263,451.80
  4. Step 4: Simplify right side
    263,451.80x = 103,879,808,750.22
  5. Step 5: Solve for x
    x = 103,879,808,750.22/263,451.80
  6. Step 6: Final answer
    x = 394,302.90

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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.