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Finding the Fourth Proportional to 275,136.30, 412,704.45 and 275,136.30

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Solution

The fourth proportional to 275,136.30, 412,704.45 and 275,136.30 is: 412,704.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,136.30 : 412,704.45 = 275,136.30 : x
  2. Step 2: Convert to fraction form
    275,136.30/412,704.45 = 275,136.30/x
  3. Step 3: Cross multiply
    275,136.30x = 412,704.45 × 275,136.30
  4. Step 4: Simplify right side
    275,136.30x = 113,549,975,366.54
  5. Step 5: Solve for x
    x = 113,549,975,366.54/275,136.30
  6. Step 6: Final answer
    x = 412,704.45

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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.