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Finding the Fourth Proportional to 325,578.40, 488,367.60 and 168,114.40

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Solution

The fourth proportional to 325,578.40, 488,367.60 and 168,114.40 is: 252,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,578.40 : 488,367.60 = 168,114.40 : x
  2. Step 2: Convert to fraction form
    325,578.40/488,367.60 = 168,114.40/x
  3. Step 3: Cross multiply
    325,578.40x = 488,367.60 × 168,114.40
  4. Step 4: Simplify right side
    325,578.40x = 82,101,626,053.44
  5. Step 5: Solve for x
    x = 82,101,626,053.44/325,578.40
  6. Step 6: Final answer
    x = 252,171.60

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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.