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Finding the Fourth Proportional to 325,422.40, 488,133.60 and 167,958.40

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Solution

The fourth proportional to 325,422.40, 488,133.60 and 167,958.40 is: 251,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,422.40 : 488,133.60 = 167,958.40 : x
  2. Step 2: Convert to fraction form
    325,422.40/488,133.60 = 167,958.40/x
  3. Step 3: Cross multiply
    325,422.40x = 488,133.60 × 167,958.40
  4. Step 4: Simplify right side
    325,422.40x = 81,986,138,442.24
  5. Step 5: Solve for x
    x = 81,986,138,442.24/325,422.40
  6. Step 6: Final answer
    x = 251,937.60

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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.