Home / 512,538.30-768,577.05-196,890.30

Finding the Fourth Proportional to 512,538.30, 768,577.05 and 196,890.30

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Solution

The fourth proportional to 512,538.30, 768,577.05 and 196,890.30 is: 295,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,538.30 : 768,577.05 = 196,890.30 : x
  2. Step 2: Convert to fraction form
    512,538.30/768,577.05 = 196,890.30/x
  3. Step 3: Cross multiply
    512,538.30x = 768,577.05 × 196,890.30
  4. Step 4: Simplify right side
    512,538.30x = 151,325,365,947.62
  5. Step 5: Solve for x
    x = 151,325,365,947.62/512,538.30
  6. Step 6: Final answer
    x = 295,246.94

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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.