Home / 654,380.85-981,583.57-205,091.78

Finding the Fourth Proportional to 654,380.85, 981,583.57 and 205,091.78

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Solution

The fourth proportional to 654,380.85, 981,583.57 and 205,091.78 is: 307,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,380.85 : 981,583.57 = 205,091.78 : x
  2. Step 2: Convert to fraction form
    654,380.85/981,583.57 = 205,091.78/x
  3. Step 3: Cross multiply
    654,380.85x = 981,583.57 × 205,091.78
  4. Step 4: Simplify right side
    654,380.85x = 201,314,721,590.06
  5. Step 5: Solve for x
    x = 201,314,721,590.06/654,380.85
  6. Step 6: Final answer
    x = 307,641.52

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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.