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Finding the Fourth Proportional to 325,698.40, 488,531.40 and 167,942.80

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Solution

The fourth proportional to 325,698.40, 488,531.40 and 167,942.80 is: 251,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,698.40 : 488,531.40 = 167,942.80 : x
  2. Step 2: Convert to fraction form
    325,698.40/488,531.40 = 167,942.80/x
  3. Step 3: Cross multiply
    325,698.40x = 488,531.40 × 167,942.80
  4. Step 4: Simplify right side
    325,698.40x = 82,045,331,203.92
  5. Step 5: Solve for x
    x = 82,045,331,203.92/325,698.40
  6. Step 6: Final answer
    x = 251,905.85

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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.