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Finding the Fourth Proportional to 526,265.64, 789,212.16 and 171,213.48

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Solution

The fourth proportional to 526,265.64, 789,212.16 and 171,213.48 is: 256,759.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,265.64 : 789,212.16 = 171,213.48 : x
  2. Step 2: Convert to fraction form
    526,265.64/789,212.16 = 171,213.48/x
  3. Step 3: Cross multiply
    526,265.64x = 789,212.16 × 171,213.48
  4. Step 4: Simplify right side
    526,265.64x = 135,123,760,371.92
  5. Step 5: Solve for x
    x = 135,123,760,371.92/526,265.64
  6. Step 6: Final answer
    x = 256,759.61

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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.