Home / 321,272.06-443,366.88-193,922.78

Finding the Fourth Proportional to 321,272.06, 443,366.88 and 193,922.78

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Solution

The fourth proportional to 321,272.06, 443,366.88 and 193,922.78 is: 267,620.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,272.06 : 443,366.88 = 193,922.78 : x
  2. Step 2: Convert to fraction form
    321,272.06/443,366.88 = 193,922.78/x
  3. Step 3: Cross multiply
    321,272.06x = 443,366.88 × 193,922.78
  4. Step 4: Simplify right side
    321,272.06x = 85,978,937,929.53
  5. Step 5: Solve for x
    x = 85,978,937,929.53/321,272.06
  6. Step 6: Final answer
    x = 267,620.34

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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.