Home / 855,863.10-1,283,793.44-256,823.28

Finding the Fourth Proportional to 855,863.10, 1,283,793.44 and 256,823.28

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Solution

The fourth proportional to 855,863.10, 1,283,793.44 and 256,823.28 is: 385,234.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,863.10 : 1,283,793.44 = 256,823.28 : x
  2. Step 2: Convert to fraction form
    855,863.10/1,283,793.44 = 256,823.28/x
  3. Step 3: Cross multiply
    855,863.10x = 1,283,793.44 × 256,823.28
  4. Step 4: Simplify right side
    855,863.10x = 329,708,040,819.17
  5. Step 5: Solve for x
    x = 329,708,040,819.17/855,863.10
  6. Step 6: Final answer
    x = 385,234.56

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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.