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Finding the Fourth Proportional to 483,647.32, 725,487.12 and 217,408.62

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Solution

The fourth proportional to 483,647.32, 725,487.12 and 217,408.62 is: 326,120.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,647.32 : 725,487.12 = 217,408.62 : x
  2. Step 2: Convert to fraction form
    483,647.32/725,487.12 = 217,408.62/x
  3. Step 3: Cross multiply
    483,647.32x = 725,487.12 × 217,408.62
  4. Step 4: Simplify right side
    483,647.32x = 157,727,153,586.97
  5. Step 5: Solve for x
    x = 157,727,153,586.97/483,647.32
  6. Step 6: Final answer
    x = 326,120.19

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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.