Home / 638,257.35-957,389.12-188,986.70

Finding the Fourth Proportional to 638,257.35, 957,389.12 and 188,986.70

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Solution

The fourth proportional to 638,257.35, 957,389.12 and 188,986.70 is: 283,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,257.35 : 957,389.12 = 188,986.70 : x
  2. Step 2: Convert to fraction form
    638,257.35/957,389.12 = 188,986.70/x
  3. Step 3: Cross multiply
    638,257.35x = 957,389.12 × 188,986.70
  4. Step 4: Simplify right side
    638,257.35x = 180,933,812,561.94
  5. Step 5: Solve for x
    x = 180,933,812,561.94/638,257.35
  6. Step 6: Final answer
    x = 283,480.97

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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.