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Finding the Fourth Proportional to 628,184.45, 866,876.02 and 356,277.17

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Solution

The fourth proportional to 628,184.45, 866,876.02 and 356,277.17 is: 491,651.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,184.45 : 866,876.02 = 356,277.17 : x
  2. Step 2: Convert to fraction form
    628,184.45/866,876.02 = 356,277.17/x
  3. Step 3: Cross multiply
    628,184.45x = 866,876.02 × 356,277.17
  4. Step 4: Simplify right side
    628,184.45x = 308,848,129,921.39
  5. Step 5: Solve for x
    x = 308,848,129,921.39/628,184.45
  6. Step 6: Final answer
    x = 491,651.99

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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.