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Finding the Fourth Proportional to 412,115.72, 618,173.58 and 225,025.16

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Solution

The fourth proportional to 412,115.72, 618,173.58 and 225,025.16 is: 337,537.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,115.72 : 618,173.58 = 225,025.16 : x
  2. Step 2: Convert to fraction form
    412,115.72/618,173.58 = 225,025.16/x
  3. Step 3: Cross multiply
    412,115.72x = 618,173.58 × 225,025.16
  4. Step 4: Simplify right side
    412,115.72x = 139,104,608,747.27
  5. Step 5: Solve for x
    x = 139,104,608,747.27/412,115.72
  6. Step 6: Final answer
    x = 337,537.74

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1.5x scale

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.