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Finding the Fourth Proportional to 325,790.66, 449,324.54 and 229,313.88

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Solution

The fourth proportional to 325,790.66, 449,324.54 and 229,313.88 is: 316,265.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,790.66 : 449,324.54 = 229,313.88 : x
  2. Step 2: Convert to fraction form
    325,790.66/449,324.54 = 229,313.88/x
  3. Step 3: Cross multiply
    325,790.66x = 449,324.54 × 229,313.88
  4. Step 4: Simplify right side
    325,790.66x = 103,036,352,500.05
  5. Step 5: Solve for x
    x = 103,036,352,500.05/325,790.66
  6. Step 6: Final answer
    x = 316,265.52

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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.