Home / 445,743.03-668,933.78-189,755.07

Finding the Fourth Proportional to 445,743.03, 668,933.78 and 189,755.07

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Solution

The fourth proportional to 445,743.03, 668,933.78 and 189,755.07 is: 284,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,743.03 : 668,933.78 = 189,755.07 : x
  2. Step 2: Convert to fraction form
    445,743.03/668,933.78 = 189,755.07/x
  3. Step 3: Cross multiply
    445,743.03x = 668,933.78 × 189,755.07
  4. Step 4: Simplify right side
    445,743.03x = 126,933,578,520.57
  5. Step 5: Solve for x
    x = 126,933,578,520.57/445,743.03
  6. Step 6: Final answer
    x = 284,768.51

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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.