Home / 351,917.52-485,532-198,940.92

Finding the Fourth Proportional to 351,917.52, 485,532 and 198,940.92

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Solution

The fourth proportional to 351,917.52, 485,532 and 198,940.92 is: 274,473.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,917.52 : 485,532 = 198,940.92 : x
  2. Step 2: Convert to fraction form
    351,917.52/485,532 = 198,940.92/x
  3. Step 3: Cross multiply
    351,917.52x = 485,532 × 198,940.92
  4. Step 4: Simplify right side
    351,917.52x = 96,592,182,769.44
  5. Step 5: Solve for x
    x = 96,592,182,769.44/351,917.52
  6. Step 6: Final answer
    x = 274,473.92

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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.