Home / 323,738.05-485,607.08-256,815.85

Finding the Fourth Proportional to 323,738.05, 485,607.08 and 256,815.85

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Solution

The fourth proportional to 323,738.05, 485,607.08 and 256,815.85 is: 385,223.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,738.05 : 485,607.08 = 256,815.85 : x
  2. Step 2: Convert to fraction form
    323,738.05/485,607.08 = 256,815.85/x
  3. Step 3: Cross multiply
    323,738.05x = 485,607.08 × 256,815.85
  4. Step 4: Simplify right side
    323,738.05x = 124,711,593,732.14
  5. Step 5: Solve for x
    x = 124,711,593,732.14/323,738.05
  6. Step 6: Final answer
    x = 385,223.78

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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.