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Finding the Fourth Proportional to 348,396.70, 522,469.53 and 120,630.46

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Solution

The fourth proportional to 348,396.70, 522,469.53 and 120,630.46 is: 180,902.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,396.70 : 522,469.53 = 120,630.46 : x
  2. Step 2: Convert to fraction form
    348,396.70/522,469.53 = 120,630.46/x
  3. Step 3: Cross multiply
    348,396.70x = 522,469.53 × 120,630.46
  4. Step 4: Simplify right side
    348,396.70x = 63,025,739,739.88
  5. Step 5: Solve for x
    x = 63,025,739,739.88/348,396.70
  6. Step 6: Final answer
    x = 180,902.23

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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.