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Finding the Fourth Proportional to 625,737.69, 863,523.99 and 339,258.51

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Solution

The fourth proportional to 625,737.69, 863,523.99 and 339,258.51 is: 468,179.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,737.69 : 863,523.99 = 339,258.51 : x
  2. Step 2: Convert to fraction form
    625,737.69/863,523.99 = 339,258.51/x
  3. Step 3: Cross multiply
    625,737.69x = 863,523.99 × 339,258.51
  4. Step 4: Simplify right side
    625,737.69x = 292,957,862,196.66
  5. Step 5: Solve for x
    x = 292,957,862,196.66/625,737.69
  6. Step 6: Final answer
    x = 468,179.98

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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.