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Finding the Fourth Proportional to 325,546.40, 488,319.60 and 323,472.80

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Solution

The fourth proportional to 325,546.40, 488,319.60 and 323,472.80 is: 485,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,546.40 : 488,319.60 = 323,472.80 : x
  2. Step 2: Convert to fraction form
    325,546.40/488,319.60 = 323,472.80/x
  3. Step 3: Cross multiply
    325,546.40x = 488,319.60 × 323,472.80
  4. Step 4: Simplify right side
    325,546.40x = 157,958,108,306.88
  5. Step 5: Solve for x
    x = 157,958,108,306.88/325,546.40
  6. Step 6: Final answer
    x = 485,209.20

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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.