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Finding the Fourth Proportional to 288,081.94, 397,258.10 and 191,251.70

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Solution

The fourth proportional to 288,081.94, 397,258.10 and 191,251.70 is: 263,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,081.94 : 397,258.10 = 191,251.70 : x
  2. Step 2: Convert to fraction form
    288,081.94/397,258.10 = 191,251.70/x
  3. Step 3: Cross multiply
    288,081.94x = 397,258.10 × 191,251.70
  4. Step 4: Simplify right side
    288,081.94x = 75,976,286,963.77
  5. Step 5: Solve for x
    x = 75,976,286,963.77/288,081.94
  6. Step 6: Final answer
    x = 263,731.52

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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.