Home / 285,427.44-393,892.56-172,228.32

Finding the Fourth Proportional to 285,427.44, 393,892.56 and 172,228.32

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Solution

The fourth proportional to 285,427.44, 393,892.56 and 172,228.32 is: 237,676.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,427.44 : 393,892.56 = 172,228.32 : x
  2. Step 2: Convert to fraction form
    285,427.44/393,892.56 = 172,228.32/x
  3. Step 3: Cross multiply
    285,427.44x = 393,892.56 × 172,228.32
  4. Step 4: Simplify right side
    285,427.44x = 67,839,453,869.30
  5. Step 5: Solve for x
    x = 67,839,453,869.30/285,427.44
  6. Step 6: Final answer
    x = 237,676.71

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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.