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Finding the Fourth Proportional to 368,225.43, 508,046.28 and 220,990.48

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Solution

The fourth proportional to 368,225.43, 508,046.28 and 220,990.48 is: 304,903.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,225.43 : 508,046.28 = 220,990.48 : x
  2. Step 2: Convert to fraction form
    368,225.43/508,046.28 = 220,990.48/x
  3. Step 3: Cross multiply
    368,225.43x = 508,046.28 × 220,990.48
  4. Step 4: Simplify right side
    368,225.43x = 112,273,389,180.58
  5. Step 5: Solve for x
    x = 112,273,389,180.58/368,225.43
  6. Step 6: Final answer
    x = 304,903.96

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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.