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Finding the Fourth Proportional to 625,794.36, 863,587.87 and 339,308.29

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Solution

The fourth proportional to 625,794.36, 863,587.87 and 339,308.29 is: 468,240.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,794.36 : 863,587.87 = 339,308.29 : x
  2. Step 2: Convert to fraction form
    625,794.36/863,587.87 = 339,308.29/x
  3. Step 3: Cross multiply
    625,794.36x = 863,587.87 × 339,308.29
  4. Step 4: Simplify right side
    625,794.36x = 293,022,523,434.44
  5. Step 5: Solve for x
    x = 293,022,523,434.44/625,794.36
  6. Step 6: Final answer
    x = 468,240.91

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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.