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Finding the Fourth Proportional to 345,251.62, 476,318.28 and 344,719.42

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Solution

The fourth proportional to 345,251.62, 476,318.28 and 344,719.42 is: 475,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,251.62 : 476,318.28 = 344,719.42 : x
  2. Step 2: Convert to fraction form
    345,251.62/476,318.28 = 344,719.42/x
  3. Step 3: Cross multiply
    345,251.62x = 476,318.28 × 344,719.42
  4. Step 4: Simplify right side
    345,251.62x = 164,196,161,217.00
  5. Step 5: Solve for x
    x = 164,196,161,217.00/345,251.62
  6. Step 6: Final answer
    x = 475,584.04

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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.