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Finding the Fourth Proportional to 621,806.60, 932,940.30 and 248,097.80

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Solution

The fourth proportional to 621,806.60, 932,940.30 and 248,097.80 is: 372,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,806.60 : 932,940.30 = 248,097.80 : x
  2. Step 2: Convert to fraction form
    621,806.60/932,940.30 = 248,097.80/x
  3. Step 3: Cross multiply
    621,806.60x = 932,940.30 × 248,097.80
  4. Step 4: Simplify right side
    621,806.60x = 231,460,435,961.34
  5. Step 5: Solve for x
    x = 231,460,435,961.34/621,806.60
  6. Step 6: Final answer
    x = 372,238.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.