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Finding the Fourth Proportional to 320,793.30, 481,189.95 and 268,305.30

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Solution

The fourth proportional to 320,793.30, 481,189.95 and 268,305.30 is: 402,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,793.30 : 481,189.95 = 268,305.30 : x
  2. Step 2: Convert to fraction form
    320,793.30/481,189.95 = 268,305.30/x
  3. Step 3: Cross multiply
    320,793.30x = 481,189.95 × 268,305.30
  4. Step 4: Simplify right side
    320,793.30x = 129,105,813,891.74
  5. Step 5: Solve for x
    x = 129,105,813,891.74/320,793.30
  6. Step 6: Final answer
    x = 402,457.95

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Similar ratio
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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.