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Finding the Fourth Proportional to 325,481.22, 488,217.12 and 317,440.32

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Solution

The fourth proportional to 325,481.22, 488,217.12 and 317,440.32 is: 476,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,481.22 : 488,217.12 = 317,440.32 : x
  2. Step 2: Convert to fraction form
    325,481.22/488,217.12 = 317,440.32/x
  3. Step 3: Cross multiply
    325,481.22x = 488,217.12 × 317,440.32
  4. Step 4: Simplify right side
    325,481.22x = 154,979,798,802.28
  5. Step 5: Solve for x
    x = 154,979,798,802.28/325,481.22
  6. Step 6: Final answer
    x = 476,155.89

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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.