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Finding the Fourth Proportional to 494,511.80, 741,443.70 and 194,811.80

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Solution

The fourth proportional to 494,511.80, 741,443.70 and 194,811.80 is: 292,090.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,511.80 : 741,443.70 = 194,811.80 : x
  2. Step 2: Convert to fraction form
    494,511.80/741,443.70 = 194,811.80/x
  3. Step 3: Cross multiply
    494,511.80x = 741,443.70 × 194,811.80
  4. Step 4: Simplify right side
    494,511.80x = 144,441,981,795.66
  5. Step 5: Solve for x
    x = 144,441,981,795.66/494,511.80
  6. Step 6: Final answer
    x = 292,090.06

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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.