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Finding the Fourth Proportional to 356,072.58, 491,385.94 and 194,924.90

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Solution

The fourth proportional to 356,072.58, 491,385.94 and 194,924.90 is: 268,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,072.58 : 491,385.94 = 194,924.90 : x
  2. Step 2: Convert to fraction form
    356,072.58/491,385.94 = 194,924.90/x
  3. Step 3: Cross multiply
    356,072.58x = 491,385.94 × 194,924.90
  4. Step 4: Simplify right side
    356,072.58x = 95,783,355,215.91
  5. Step 5: Solve for x
    x = 95,783,355,215.91/356,072.58
  6. Step 6: Final answer
    x = 268,999.53

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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.