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Finding the Fourth Proportional to 316,863.78, 437,271.96 and 173,629.44

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Solution

The fourth proportional to 316,863.78, 437,271.96 and 173,629.44 is: 239,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,863.78 : 437,271.96 = 173,629.44 : x
  2. Step 2: Convert to fraction form
    316,863.78/437,271.96 = 173,629.44/x
  3. Step 3: Cross multiply
    316,863.78x = 437,271.96 × 173,629.44
  4. Step 4: Simplify right side
    316,863.78x = 75,923,285,542.50
  5. Step 5: Solve for x
    x = 75,923,285,542.50/316,863.78
  6. Step 6: Final answer
    x = 239,608.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.