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Finding the Fourth Proportional to 515,374.62, 773,134.83 and 199,863.42

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Solution

The fourth proportional to 515,374.62, 773,134.83 and 199,863.42 is: 299,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,374.62 : 773,134.83 = 199,863.42 : x
  2. Step 2: Convert to fraction form
    515,374.62/773,134.83 = 199,863.42/x
  3. Step 3: Cross multiply
    515,374.62x = 773,134.83 × 199,863.42
  4. Step 4: Simplify right side
    515,374.62x = 154,521,371,244.92
  5. Step 5: Solve for x
    x = 154,521,371,244.92/515,374.62
  6. Step 6: Final answer
    x = 299,823.40

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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.