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Finding the Fourth Proportional to 494,799.30, 694,118.70 and 494,799.30

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Solution

The fourth proportional to 494,799.30, 694,118.70 and 494,799.30 is: 694,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,799.30 : 694,118.70 = 494,799.30 : x
  2. Step 2: Convert to fraction form
    494,799.30/694,118.70 = 494,799.30/x
  3. Step 3: Cross multiply
    494,799.30x = 694,118.70 × 494,799.30
  4. Step 4: Simplify right side
    494,799.30x = 343,449,446,876.91
  5. Step 5: Solve for x
    x = 343,449,446,876.91/494,799.30
  6. Step 6: Final answer
    x = 694,118.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.