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Finding the Fourth Proportional to 303,766.20, 455,649.30 and 204,233.40

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Solution

The fourth proportional to 303,766.20, 455,649.30 and 204,233.40 is: 306,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,766.20 : 455,649.30 = 204,233.40 : x
  2. Step 2: Convert to fraction form
    303,766.20/455,649.30 = 204,233.40/x
  3. Step 3: Cross multiply
    303,766.20x = 455,649.30 × 204,233.40
  4. Step 4: Simplify right side
    303,766.20x = 93,058,805,746.62
  5. Step 5: Solve for x
    x = 93,058,805,746.62/303,766.20
  6. Step 6: Final answer
    x = 306,350.10

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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.