Home / 654,323.78-981,484.17-205,078.88

Finding the Fourth Proportional to 654,323.78, 981,484.17 and 205,078.88

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Solution

The fourth proportional to 654,323.78, 981,484.17 and 205,078.88 is: 307,617.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,323.78 : 981,484.17 = 205,078.88 : x
  2. Step 2: Convert to fraction form
    654,323.78/981,484.17 = 205,078.88/x
  3. Step 3: Cross multiply
    654,323.78x = 981,484.17 × 205,078.88
  4. Step 4: Simplify right side
    654,323.78x = 201,281,674,321.33
  5. Step 5: Solve for x
    x = 201,281,674,321.33/654,323.78
  6. Step 6: Final answer
    x = 307,617.85

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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.