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Finding the Fourth Proportional to 262,810.20, 394,244.10 and 254,515.80

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Solution

The fourth proportional to 262,810.20, 394,244.10 and 254,515.80 is: 381,801.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,810.20 : 394,244.10 = 254,515.80 : x
  2. Step 2: Convert to fraction form
    262,810.20/394,244.10 = 254,515.80/x
  3. Step 3: Cross multiply
    262,810.20x = 394,244.10 × 254,515.80
  4. Step 4: Simplify right side
    262,810.20x = 100,341,352,506.78
  5. Step 5: Solve for x
    x = 100,341,352,506.78/262,810.20
  6. Step 6: Final answer
    x = 381,801.59

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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.