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Finding the Fourth Proportional to 494,807.30, 694,129.90 and 494,807.30

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Solution

The fourth proportional to 494,807.30, 694,129.90 and 494,807.30 is: 694,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,807.30 : 694,129.90 = 494,807.30 : x
  2. Step 2: Convert to fraction form
    494,807.30/694,129.90 = 494,807.30/x
  3. Step 3: Cross multiply
    494,807.30x = 694,129.90 × 494,807.30
  4. Step 4: Simplify right side
    494,807.30x = 343,460,541,668.27
  5. Step 5: Solve for x
    x = 343,460,541,668.27/494,807.30
  6. Step 6: Final answer
    x = 694,129.90

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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.