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Finding the Fourth Proportional to 463,867.66, 640,174.29 and 272,917.96

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Solution

The fourth proportional to 463,867.66, 640,174.29 and 272,917.96 is: 376,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,867.66 : 640,174.29 = 272,917.96 : x
  2. Step 2: Convert to fraction form
    463,867.66/640,174.29 = 272,917.96/x
  3. Step 3: Cross multiply
    463,867.66x = 640,174.29 × 272,917.96
  4. Step 4: Simplify right side
    463,867.66x = 174,715,058,647.37
  5. Step 5: Solve for x
    x = 174,715,058,647.37/463,867.66
  6. Step 6: Final answer
    x = 376,648.50

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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.