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Finding the Fourth Proportional to 625,566.39, 863,258.49 and 339,080.33

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Solution

The fourth proportional to 625,566.39, 863,258.49 and 339,080.33 is: 467,918.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,566.39 : 863,258.49 = 339,080.33 : x
  2. Step 2: Convert to fraction form
    625,566.39/863,258.49 = 339,080.33/x
  3. Step 3: Cross multiply
    625,566.39x = 863,258.49 × 339,080.33
  4. Step 4: Simplify right side
    625,566.39x = 292,713,969,348.21
  5. Step 5: Solve for x
    x = 292,713,969,348.21/625,566.39
  6. Step 6: Final answer
    x = 467,918.31

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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.