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Finding the Fourth Proportional to 366,990.48, 506,451.12 and 203,650.36

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Solution

The fourth proportional to 366,990.48, 506,451.12 and 203,650.36 is: 281,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,990.48 : 506,451.12 = 203,650.36 : x
  2. Step 2: Convert to fraction form
    366,990.48/506,451.12 = 203,650.36/x
  3. Step 3: Cross multiply
    366,990.48x = 506,451.12 × 203,650.36
  4. Step 4: Simplify right side
    366,990.48x = 103,138,952,910.40
  5. Step 5: Solve for x
    x = 103,138,952,910.40/366,990.48
  6. Step 6: Final answer
    x = 281,039.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.