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Finding the Fourth Proportional to 626,193.89, 864,147.92 and 339,713.95

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Solution

The fourth proportional to 626,193.89, 864,147.92 and 339,713.95 is: 468,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,193.89 : 864,147.92 = 339,713.95 : x
  2. Step 2: Convert to fraction form
    626,193.89/864,147.92 = 339,713.95/x
  3. Step 3: Cross multiply
    626,193.89x = 864,147.92 × 339,713.95
  4. Step 4: Simplify right side
    626,193.89x = 293,563,099,428.55
  5. Step 5: Solve for x
    x = 293,563,099,428.55/626,193.89
  6. Step 6: Final answer
    x = 468,805.43

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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.