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Finding the Fourth Proportional to 627,950.36, 866,644.56 and 352,384.11

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Solution

The fourth proportional to 627,950.36, 866,644.56 and 352,384.11 is: 486,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,950.36 : 866,644.56 = 352,384.11 : x
  2. Step 2: Convert to fraction form
    627,950.36/866,644.56 = 352,384.11/x
  3. Step 3: Cross multiply
    627,950.36x = 866,644.56 × 352,384.11
  4. Step 4: Simplify right side
    627,950.36x = 305,391,771,961.94
  5. Step 5: Solve for x
    x = 305,391,771,961.94/627,950.36
  6. Step 6: Final answer
    x = 486,331.08

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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.