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Finding the Fourth Proportional to 273,903.10, 411,469.05 and 263,458.30

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Solution

The fourth proportional to 273,903.10, 411,469.05 and 263,458.30 is: 395,778.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,903.10 : 411,469.05 = 263,458.30 : x
  2. Step 2: Convert to fraction form
    273,903.10/411,469.05 = 263,458.30/x
  3. Step 3: Cross multiply
    273,903.10x = 411,469.05 × 263,458.30
  4. Step 4: Simplify right side
    273,903.10x = 108,404,936,415.62
  5. Step 5: Solve for x
    x = 108,404,936,415.62/273,903.10
  6. Step 6: Final answer
    x = 395,778.42

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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.