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Finding the Fourth Proportional to 348,540.60, 523,329.30 and 269,743.80

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Solution

The fourth proportional to 348,540.60, 523,329.30 and 269,743.80 is: 405,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,540.60 : 523,329.30 = 269,743.80 : x
  2. Step 2: Convert to fraction form
    348,540.60/523,329.30 = 269,743.80/x
  3. Step 3: Cross multiply
    348,540.60x = 523,329.30 × 269,743.80
  4. Step 4: Simplify right side
    348,540.60x = 141,164,834,033.34
  5. Step 5: Solve for x
    x = 141,164,834,033.34/348,540.60
  6. Step 6: Final answer
    x = 405,016.90

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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.