Home / 311,276.25-429,577.19-190,379.56

Finding the Fourth Proportional to 311,276.25, 429,577.19 and 190,379.56

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Solution

The fourth proportional to 311,276.25, 429,577.19 and 190,379.56 is: 262,733.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,276.25 : 429,577.19 = 190,379.56 : x
  2. Step 2: Convert to fraction form
    311,276.25/429,577.19 = 190,379.56/x
  3. Step 3: Cross multiply
    311,276.25x = 429,577.19 × 190,379.56
  4. Step 4: Simplify right side
    311,276.25x = 81,782,716,418.24
  5. Step 5: Solve for x
    x = 81,782,716,418.24/311,276.25
  6. Step 6: Final answer
    x = 262,733.56

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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.