Home / 330,729.68-456,246.60-196,498.64

Finding the Fourth Proportional to 330,729.68, 456,246.60 and 196,498.64

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Solution

The fourth proportional to 330,729.68, 456,246.60 and 196,498.64 is: 271,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,729.68 : 456,246.60 = 196,498.64 : x
  2. Step 2: Convert to fraction form
    330,729.68/456,246.60 = 196,498.64/x
  3. Step 3: Cross multiply
    330,729.68x = 456,246.60 × 196,498.64
  4. Step 4: Simplify right side
    330,729.68x = 89,651,836,404.62
  5. Step 5: Solve for x
    x = 89,651,836,404.62/330,729.68
  6. Step 6: Final answer
    x = 271,072.85

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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.