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Finding the Fourth Proportional to 516,880.90, 775,003.83 and 200,969.56

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Solution

The fourth proportional to 516,880.90, 775,003.83 and 200,969.56 is: 301,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,880.90 : 775,003.83 = 200,969.56 : x
  2. Step 2: Convert to fraction form
    516,880.90/775,003.83 = 200,969.56/x
  3. Step 3: Cross multiply
    516,880.90x = 775,003.83 × 200,969.56
  4. Step 4: Simplify right side
    516,880.90x = 155,752,178,713.42
  5. Step 5: Solve for x
    x = 155,752,178,713.42/516,880.90
  6. Step 6: Final answer
    x = 301,330.88

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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.