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Finding the Fourth Proportional to 361,391.58, 498,719.89 and 200,257.06

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Solution

The fourth proportional to 361,391.58, 498,719.89 and 200,257.06 is: 276,354.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,391.58 : 498,719.89 = 200,257.06 : x
  2. Step 2: Convert to fraction form
    361,391.58/498,719.89 = 200,257.06/x
  3. Step 3: Cross multiply
    361,391.58x = 498,719.89 × 200,257.06
  4. Step 4: Simplify right side
    361,391.58x = 99,872,178,934.92
  5. Step 5: Solve for x
    x = 99,872,178,934.92/361,391.58
  6. Step 6: Final answer
    x = 276,354.47

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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.