Home / 679,516.20-1,019,930.40-413,795.70

Finding the Fourth Proportional to 679,516.20, 1,019,930.40 and 413,795.70

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Solution

The fourth proportional to 679,516.20, 1,019,930.40 and 413,795.70 is: 621,093.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,516.20 : 1,019,930.40 = 413,795.70 : x
  2. Step 2: Convert to fraction form
    679,516.20/1,019,930.40 = 413,795.70/x
  3. Step 3: Cross multiply
    679,516.20x = 1,019,930.40 × 413,795.70
  4. Step 4: Simplify right side
    679,516.20x = 422,042,813,819.28
  5. Step 5: Solve for x
    x = 422,042,813,819.28/679,516.20
  6. Step 6: Final answer
    x = 621,093.09

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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.