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Finding the Fourth Proportional to 361,790.70, 499,301.06 and 200,697.70

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Solution

The fourth proportional to 361,790.70, 499,301.06 and 200,697.70 is: 276,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,790.70 : 499,301.06 = 200,697.70 : x
  2. Step 2: Convert to fraction form
    361,790.70/499,301.06 = 200,697.70/x
  3. Step 3: Cross multiply
    361,790.70x = 499,301.06 × 200,697.70
  4. Step 4: Simplify right side
    361,790.70x = 100,208,574,349.56
  5. Step 5: Solve for x
    x = 100,208,574,349.56/361,790.70
  6. Step 6: Final answer
    x = 276,979.41

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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.