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Finding the Fourth Proportional to 481,225.92, 721,432.95 and 303,340.86

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Solution

The fourth proportional to 481,225.92, 721,432.95 and 303,340.86 is: 454,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,225.92 : 721,432.95 = 303,340.86 : x
  2. Step 2: Convert to fraction form
    481,225.92/721,432.95 = 303,340.86/x
  3. Step 3: Cross multiply
    481,225.92x = 721,432.95 × 303,340.86
  4. Step 4: Simplify right side
    481,225.92x = 218,840,091,485.34
  5. Step 5: Solve for x
    x = 218,840,091,485.34/481,225.92
  6. Step 6: Final answer
    x = 454,755.41

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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.