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Finding the Fourth Proportional to 625,550.40, 863,264.04 and 339,072.48

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Solution

The fourth proportional to 625,550.40, 863,264.04 and 339,072.48 is: 467,922.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,550.40 : 863,264.04 = 339,072.48 : x
  2. Step 2: Convert to fraction form
    625,550.40/863,264.04 = 339,072.48/x
  3. Step 3: Cross multiply
    625,550.40x = 863,264.04 × 339,072.48
  4. Step 4: Simplify right side
    625,550.40x = 292,709,078,937.62
  5. Step 5: Solve for x
    x = 292,709,078,937.62/625,550.40
  6. Step 6: Final answer
    x = 467,922.46

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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.