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Finding the Fourth Proportional to 325,715.28, 487,851.12 and 250,280.16

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Solution

The fourth proportional to 325,715.28, 487,851.12 and 250,280.16 is: 374,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,715.28 : 487,851.12 = 250,280.16 : x
  2. Step 2: Convert to fraction form
    325,715.28/487,851.12 = 250,280.16/x
  3. Step 3: Cross multiply
    325,715.28x = 487,851.12 × 250,280.16
  4. Step 4: Simplify right side
    325,715.28x = 122,099,456,369.78
  5. Step 5: Solve for x
    x = 122,099,456,369.78/325,715.28
  6. Step 6: Final answer
    x = 374,865.61

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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.