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Finding the Fourth Proportional to 351,466.38, 485,022.75 and 190,321.44

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Solution

The fourth proportional to 351,466.38, 485,022.75 and 190,321.44 is: 262,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,466.38 : 485,022.75 = 190,321.44 : x
  2. Step 2: Convert to fraction form
    351,466.38/485,022.75 = 190,321.44/x
  3. Step 3: Cross multiply
    351,466.38x = 485,022.75 × 190,321.44
  4. Step 4: Simplify right side
    351,466.38x = 92,310,228,212.76
  5. Step 5: Solve for x
    x = 92,310,228,212.76/351,466.38
  6. Step 6: Final answer
    x = 262,643.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.