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Finding the Fourth Proportional to 348,372.89, 522,431.76 and 273,638.54

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Solution

The fourth proportional to 348,372.89, 522,431.76 and 273,638.54 is: 410,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,372.89 : 522,431.76 = 273,638.54 : x
  2. Step 2: Convert to fraction form
    348,372.89/522,431.76 = 273,638.54/x
  3. Step 3: Cross multiply
    348,372.89x = 522,431.76 × 273,638.54
  4. Step 4: Simplify right side
    348,372.89x = 142,957,464,056.03
  5. Step 5: Solve for x
    x = 142,957,464,056.03/348,372.89
  6. Step 6: Final answer
    x = 410,357.60

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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.