Home / 290,764.80-435,447.36-196,986.24

Finding the Fourth Proportional to 290,764.80, 435,447.36 and 196,986.24

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Solution

The fourth proportional to 290,764.80, 435,447.36 and 196,986.24 is: 295,005.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,764.80 : 435,447.36 = 196,986.24 : x
  2. Step 2: Convert to fraction form
    290,764.80/435,447.36 = 196,986.24/x
  3. Step 3: Cross multiply
    290,764.80x = 435,447.36 × 196,986.24
  4. Step 4: Simplify right side
    290,764.80x = 85,777,138,164.33
  5. Step 5: Solve for x
    x = 85,777,138,164.33/290,764.80
  6. Step 6: Final answer
    x = 295,005.24

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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.