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Finding the Fourth Proportional to 351,612.53, 485,227.63 and 190,467.59

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Solution

The fourth proportional to 351,612.53, 485,227.63 and 190,467.59 is: 262,846.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,612.53 : 485,227.63 = 190,467.59 : x
  2. Step 2: Convert to fraction form
    351,612.53/485,227.63 = 190,467.59/x
  3. Step 3: Cross multiply
    351,612.53x = 485,227.63 × 190,467.59
  4. Step 4: Simplify right side
    351,612.53x = 92,420,133,909.04
  5. Step 5: Solve for x
    x = 92,420,133,909.04/351,612.53
  6. Step 6: Final answer
    x = 262,846.54

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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.