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Finding the Fourth Proportional to 628,228.28, 866,954.36 and 341,747.69

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Solution

The fourth proportional to 628,228.28, 866,954.36 and 341,747.69 is: 471,611.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,228.28 : 866,954.36 = 341,747.69 : x
  2. Step 2: Convert to fraction form
    628,228.28/866,954.36 = 341,747.69/x
  3. Step 3: Cross multiply
    628,228.28x = 866,954.36 × 341,747.69
  4. Step 4: Simplify right side
    628,228.28x = 296,279,646,385.03
  5. Step 5: Solve for x
    x = 296,279,646,385.03/628,228.28
  6. Step 6: Final answer
    x = 471,611.44

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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.