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Finding the Fourth Proportional to 398,566.94, 597,992.98 and 170,766.86

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Solution

The fourth proportional to 398,566.94, 597,992.98 and 170,766.86 is: 256,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,566.94 : 597,992.98 = 170,766.86 : x
  2. Step 2: Convert to fraction form
    398,566.94/597,992.98 = 170,766.86/x
  3. Step 3: Cross multiply
    398,566.94x = 597,992.98 × 170,766.86
  4. Step 4: Simplify right side
    398,566.94x = 102,117,383,496.64
  5. Step 5: Solve for x
    x = 102,117,383,496.64/398,566.94
  6. Step 6: Final answer
    x = 256,211.37

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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.