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Finding the Fourth Proportional to 626,044.86, 863,257.23 and 465,198.30

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Solution

The fourth proportional to 626,044.86, 863,257.23 and 465,198.30 is: 641,464.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,044.86 : 863,257.23 = 465,198.30 : x
  2. Step 2: Convert to fraction form
    626,044.86/863,257.23 = 465,198.30/x
  3. Step 3: Cross multiply
    626,044.86x = 863,257.23 × 465,198.30
  4. Step 4: Simplify right side
    626,044.86x = 401,585,795,858.71
  5. Step 5: Solve for x
    x = 401,585,795,858.71/626,044.86
  6. Step 6: Final answer
    x = 641,464.89

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1.5x scale

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.