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Finding the Fourth Proportional to 356,055.35, 491,356.35 and 194,910.51

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Solution

The fourth proportional to 356,055.35, 491,356.35 and 194,910.51 is: 268,976.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,055.35 : 491,356.35 = 194,910.51 : x
  2. Step 2: Convert to fraction form
    356,055.35/491,356.35 = 194,910.51/x
  3. Step 3: Cross multiply
    356,055.35x = 491,356.35 × 194,910.51
  4. Step 4: Simplify right side
    356,055.35x = 95,770,516,770.24
  5. Step 5: Solve for x
    x = 95,770,516,770.24/356,055.35
  6. Step 6: Final answer
    x = 268,976.48

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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.