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Finding the Fourth Proportional to 339,291.88, 468,010.98 and 218,593

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Solution

The fourth proportional to 339,291.88, 468,010.98 and 218,593 is: 301,521.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,291.88 : 468,010.98 = 218,593 : x
  2. Step 2: Convert to fraction form
    339,291.88/468,010.98 = 218,593/x
  3. Step 3: Cross multiply
    339,291.88x = 468,010.98 × 218,593
  4. Step 4: Simplify right side
    339,291.88x = 102,303,924,151.14
  5. Step 5: Solve for x
    x = 102,303,924,151.14/339,291.88
  6. Step 6: Final answer
    x = 301,521.88

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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.