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Finding the Fourth Proportional to 625,466.57, 863,148.13 and 338,991.44

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Solution

The fourth proportional to 625,466.57, 863,148.13 and 338,991.44 is: 467,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,466.57 : 863,148.13 = 338,991.44 : x
  2. Step 2: Convert to fraction form
    625,466.57/863,148.13 = 338,991.44/x
  3. Step 3: Cross multiply
    625,466.57x = 863,148.13 × 338,991.44
  4. Step 4: Simplify right side
    625,466.57x = 292,599,827,522.01
  5. Step 5: Solve for x
    x = 292,599,827,522.01/625,466.57
  6. Step 6: Final answer
    x = 467,810.50

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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.