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Finding the Fourth Proportional to 325,145.20, 486,940.20 and 262,937.20

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Solution

The fourth proportional to 325,145.20, 486,940.20 and 262,937.20 is: 393,776.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,145.20 : 486,940.20 = 262,937.20 : x
  2. Step 2: Convert to fraction form
    325,145.20/486,940.20 = 262,937.20/x
  3. Step 3: Cross multiply
    325,145.20x = 486,940.20 × 262,937.20
  4. Step 4: Simplify right side
    325,145.20x = 128,034,692,755.44
  5. Step 5: Solve for x
    x = 128,034,692,755.44/325,145.20
  6. Step 6: Final answer
    x = 393,776.97

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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.