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Finding the Fourth Proportional to 451,522.40, 676,369.68 and 215,093.60

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Solution

The fourth proportional to 451,522.40, 676,369.68 and 215,093.60 is: 322,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,522.40 : 676,369.68 = 215,093.60 : x
  2. Step 2: Convert to fraction form
    451,522.40/676,369.68 = 215,093.60/x
  3. Step 3: Cross multiply
    451,522.40x = 676,369.68 × 215,093.60
  4. Step 4: Simplify right side
    451,522.40x = 145,482,789,402.05
  5. Step 5: Solve for x
    x = 145,482,789,402.05/451,522.40
  6. Step 6: Final answer
    x = 322,205.03

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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.