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Finding the Fourth Proportional to 275,600.40, 412,963.20 and 181,996.80

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Solution

The fourth proportional to 275,600.40, 412,963.20 and 181,996.80 is: 272,706.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,600.40 : 412,963.20 = 181,996.80 : x
  2. Step 2: Convert to fraction form
    275,600.40/412,963.20 = 181,996.80/x
  3. Step 3: Cross multiply
    275,600.40x = 412,963.20 × 181,996.80
  4. Step 4: Simplify right side
    275,600.40x = 75,157,980,917.76
  5. Step 5: Solve for x
    x = 75,157,980,917.76/275,600.40
  6. Step 6: Final answer
    x = 272,706.36

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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.