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Finding the Fourth Proportional to 361,803.60, 499,318.85 and 200,710.58

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Solution

The fourth proportional to 361,803.60, 499,318.85 and 200,710.58 is: 276,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,803.60 : 499,318.85 = 200,710.58 : x
  2. Step 2: Convert to fraction form
    361,803.60/499,318.85 = 200,710.58/x
  3. Step 3: Cross multiply
    361,803.60x = 499,318.85 × 200,710.58
  4. Step 4: Simplify right side
    361,803.60x = 100,218,573,993.62
  5. Step 5: Solve for x
    x = 100,218,573,993.62/361,803.60
  6. Step 6: Final answer
    x = 276,997.17

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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.