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Finding the Fourth Proportional to 451,328.29, 622,896.89 and 279,301.65

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Solution

The fourth proportional to 451,328.29, 622,896.89 and 279,301.65 is: 385,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,328.29 : 622,896.89 = 279,301.65 : x
  2. Step 2: Convert to fraction form
    451,328.29/622,896.89 = 279,301.65/x
  3. Step 3: Cross multiply
    451,328.29x = 622,896.89 × 279,301.65
  4. Step 4: Simplify right side
    451,328.29x = 173,976,129,891.22
  5. Step 5: Solve for x
    x = 173,976,129,891.22/451,328.29
  6. Step 6: Final answer
    x = 385,475.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.