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Finding the Fourth Proportional to 397,915.70, 596,979.15 and 173,179.70

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Solution

The fourth proportional to 397,915.70, 596,979.15 and 173,179.70 is: 259,815.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,915.70 : 596,979.15 = 173,179.70 : x
  2. Step 2: Convert to fraction form
    397,915.70/596,979.15 = 173,179.70/x
  3. Step 3: Cross multiply
    397,915.70x = 596,979.15 × 173,179.70
  4. Step 4: Simplify right side
    397,915.70x = 103,384,670,103.26
  5. Step 5: Solve for x
    x = 103,384,670,103.26/397,915.70
  6. Step 6: Final answer
    x = 259,815.51

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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.