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Finding the Fourth Proportional to 464,089.74, 639,245.91 and 327,887.26

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Solution

The fourth proportional to 464,089.74, 639,245.91 and 327,887.26 is: 451,638.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,089.74 : 639,245.91 = 327,887.26 : x
  2. Step 2: Convert to fraction form
    464,089.74/639,245.91 = 327,887.26/x
  3. Step 3: Cross multiply
    464,089.74x = 639,245.91 × 327,887.26
  4. Step 4: Simplify right side
    464,089.74x = 209,600,589,896.11
  5. Step 5: Solve for x
    x = 209,600,589,896.11/464,089.74
  6. Step 6: Final answer
    x = 451,638.06

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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.