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Finding the Fourth Proportional to 339,539.88, 508,609.98 and 198,872.04

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Solution

The fourth proportional to 339,539.88, 508,609.98 and 198,872.04 is: 297,898.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,539.88 : 508,609.98 = 198,872.04 : x
  2. Step 2: Convert to fraction form
    339,539.88/508,609.98 = 198,872.04/x
  3. Step 3: Cross multiply
    339,539.88x = 508,609.98 × 198,872.04
  4. Step 4: Simplify right side
    339,539.88x = 101,148,304,286.96
  5. Step 5: Solve for x
    x = 101,148,304,286.96/339,539.88
  6. Step 6: Final answer
    x = 297,898.16

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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.