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Finding the Fourth Proportional to 627,903.36, 866,517.48 and 341,425.20

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Solution

The fourth proportional to 627,903.36, 866,517.48 and 341,425.20 is: 471,172.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,903.36 : 866,517.48 = 341,425.20 : x
  2. Step 2: Convert to fraction form
    627,903.36/866,517.48 = 341,425.20/x
  3. Step 3: Cross multiply
    627,903.36x = 866,517.48 × 341,425.20
  4. Step 4: Simplify right side
    627,903.36x = 295,850,903,912.50
  5. Step 5: Solve for x
    x = 295,850,903,912.50/627,903.36
  6. Step 6: Final answer
    x = 471,172.67

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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.