Home / 290,786.73-400,865.04-192,505.23

Finding the Fourth Proportional to 290,786.73, 400,865.04 and 192,505.23

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Solution

The fourth proportional to 290,786.73, 400,865.04 and 192,505.23 is: 265,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,786.73 : 400,865.04 = 192,505.23 : x
  2. Step 2: Convert to fraction form
    290,786.73/400,865.04 = 192,505.23/x
  3. Step 3: Cross multiply
    290,786.73x = 400,865.04 × 192,505.23
  4. Step 4: Simplify right side
    290,786.73x = 77,168,616,724.16
  5. Step 5: Solve for x
    x = 77,168,616,724.16/290,786.73
  6. Step 6: Final answer
    x = 265,378.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.