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Finding the Fourth Proportional to 577,896.40, 866,847.30 and 203,919.40

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Solution

The fourth proportional to 577,896.40, 866,847.30 and 203,919.40 is: 305,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,896.40 : 866,847.30 = 203,919.40 : x
  2. Step 2: Convert to fraction form
    577,896.40/866,847.30 = 203,919.40/x
  3. Step 3: Cross multiply
    577,896.40x = 866,847.30 × 203,919.40
  4. Step 4: Simplify right side
    577,896.40x = 176,766,981,307.62
  5. Step 5: Solve for x
    x = 176,766,981,307.62/577,896.40
  6. Step 6: Final answer
    x = 305,880.05

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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.