Home / 638,183.04-956,371.92-353,998.80

Finding the Fourth Proportional to 638,183.04, 956,371.92 and 353,998.80

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Solution

The fourth proportional to 638,183.04, 956,371.92 and 353,998.80 is: 530,497.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,183.04 : 956,371.92 = 353,998.80 : x
  2. Step 2: Convert to fraction form
    638,183.04/956,371.92 = 353,998.80/x
  3. Step 3: Cross multiply
    638,183.04x = 956,371.92 × 353,998.80
  4. Step 4: Simplify right side
    638,183.04x = 338,554,512,033.70
  5. Step 5: Solve for x
    x = 338,554,512,033.70/638,183.04
  6. Step 6: Final answer
    x = 530,497.51

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Double scale
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Similar ratio
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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.