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Finding the Fourth Proportional to 627,857.33, 866,432.90 and 341,384.63

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Solution

The fourth proportional to 627,857.33, 866,432.90 and 341,384.63 is: 471,105.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,857.33 : 866,432.90 = 341,384.63 : x
  2. Step 2: Convert to fraction form
    627,857.33/866,432.90 = 341,384.63/x
  3. Step 3: Cross multiply
    627,857.33x = 866,432.90 × 341,384.63
  4. Step 4: Simplify right side
    627,857.33x = 295,786,871,507.62
  5. Step 5: Solve for x
    x = 295,786,871,507.62/627,857.33
  6. Step 6: Final answer
    x = 471,105.23

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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.