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Finding the Fourth Proportional to 624,986.72, 937,331.40 and 269,806.40

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Solution

The fourth proportional to 624,986.72, 937,331.40 and 269,806.40 is: 404,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,986.72 : 937,331.40 = 269,806.40 : x
  2. Step 2: Convert to fraction form
    624,986.72/937,331.40 = 269,806.40/x
  3. Step 3: Cross multiply
    624,986.72x = 937,331.40 × 269,806.40
  4. Step 4: Simplify right side
    624,986.72x = 252,898,010,640.96
  5. Step 5: Solve for x
    x = 252,898,010,640.96/624,986.72
  6. Step 6: Final answer
    x = 404,645.41

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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.