Home / 638,022.69-957,220.91-188,755.63

Finding the Fourth Proportional to 638,022.69, 957,220.91 and 188,755.63

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Solution

The fourth proportional to 638,022.69, 957,220.91 and 188,755.63 is: 283,188.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,022.69 : 957,220.91 = 188,755.63 : x
  2. Step 2: Convert to fraction form
    638,022.69/957,220.91 = 188,755.63/x
  3. Step 3: Cross multiply
    638,022.69x = 957,220.91 × 188,755.63
  4. Step 4: Simplify right side
    638,022.69x = 180,680,835,916.22
  5. Step 5: Solve for x
    x = 180,680,835,916.22/638,022.69
  6. Step 6: Final answer
    x = 283,188.73

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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.