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Finding the Fourth Proportional to 635,976.90, 953,372.43 and 214,958.34

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Solution

The fourth proportional to 635,976.90, 953,372.43 and 214,958.34 is: 322,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,976.90 : 953,372.43 = 214,958.34 : x
  2. Step 2: Convert to fraction form
    635,976.90/953,372.43 = 214,958.34/x
  3. Step 3: Cross multiply
    635,976.90x = 953,372.43 × 214,958.34
  4. Step 4: Simplify right side
    635,976.90x = 204,935,354,954.57
  5. Step 5: Solve for x
    x = 204,935,354,954.57/635,976.90
  6. Step 6: Final answer
    x = 322,237.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.