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Finding the Fourth Proportional to 418,174.20, 577,083.16 and 227,187.54

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Solution

The fourth proportional to 418,174.20, 577,083.16 and 227,187.54 is: 313,520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,174.20 : 577,083.16 = 227,187.54 : x
  2. Step 2: Convert to fraction form
    418,174.20/577,083.16 = 227,187.54/x
  3. Step 3: Cross multiply
    418,174.20x = 577,083.16 × 227,187.54
  4. Step 4: Simplify right side
    418,174.20x = 131,106,103,495.83
  5. Step 5: Solve for x
    x = 131,106,103,495.83/418,174.20
  6. Step 6: Final answer
    x = 313,520.31

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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.