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Finding the Fourth Proportional to 626,366.89, 864,388.60 and 339,886.97

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Solution

The fourth proportional to 626,366.89, 864,388.60 and 339,886.97 is: 469,045.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,366.89 : 864,388.60 = 339,886.97 : x
  2. Step 2: Convert to fraction form
    626,366.89/864,388.60 = 339,886.97/x
  3. Step 3: Cross multiply
    626,366.89x = 864,388.60 × 339,886.97
  4. Step 4: Simplify right side
    626,366.89x = 293,794,422,156.54
  5. Step 5: Solve for x
    x = 293,794,422,156.54/626,366.89
  6. Step 6: Final answer
    x = 469,045.26

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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.