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Finding the Fourth Proportional to 348,438.20, 523,046.10 and 325,596.20

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Solution

The fourth proportional to 348,438.20, 523,046.10 and 325,596.20 is: 488,757.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,438.20 : 523,046.10 = 325,596.20 : x
  2. Step 2: Convert to fraction form
    348,438.20/523,046.10 = 325,596.20/x
  3. Step 3: Cross multiply
    348,438.20x = 523,046.10 × 325,596.20
  4. Step 4: Simplify right side
    348,438.20x = 170,301,822,584.82
  5. Step 5: Solve for x
    x = 170,301,822,584.82/348,438.20
  6. Step 6: Final answer
    x = 488,757.61

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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.