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Finding the Fourth Proportional to 263,671.48, 395,516.94 and 135,553.48

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Solution

The fourth proportional to 263,671.48, 395,516.94 and 135,553.48 is: 203,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,671.48 : 395,516.94 = 135,553.48 : x
  2. Step 2: Convert to fraction form
    263,671.48/395,516.94 = 135,553.48/x
  3. Step 3: Cross multiply
    263,671.48x = 395,516.94 × 135,553.48
  4. Step 4: Simplify right side
    263,671.48x = 53,613,697,615.95
  5. Step 5: Solve for x
    x = 53,613,697,615.95/263,671.48
  6. Step 6: Final answer
    x = 203,335.22

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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.