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Finding the Fourth Proportional to 325,519.60, 488,279.40 and 214,711.60

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Solution

The fourth proportional to 325,519.60, 488,279.40 and 214,711.60 is: 322,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,519.60 : 488,279.40 = 214,711.60 : x
  2. Step 2: Convert to fraction form
    325,519.60/488,279.40 = 214,711.60/x
  3. Step 3: Cross multiply
    325,519.60x = 488,279.40 × 214,711.60
  4. Step 4: Simplify right side
    325,519.60x = 104,839,251,221.04
  5. Step 5: Solve for x
    x = 104,839,251,221.04/325,519.60
  6. Step 6: Final answer
    x = 322,067.40

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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.