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Finding the Fourth Proportional to 494,805.30, 694,127.10 and 494,805.30

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Solution

The fourth proportional to 494,805.30, 694,127.10 and 494,805.30 is: 694,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,805.30 : 694,127.10 = 494,805.30 : x
  2. Step 2: Convert to fraction form
    494,805.30/694,127.10 = 494,805.30/x
  3. Step 3: Cross multiply
    494,805.30x = 694,127.10 × 494,805.30
  4. Step 4: Simplify right side
    494,805.30x = 343,457,767,953.63
  5. Step 5: Solve for x
    x = 343,457,767,953.63/494,805.30
  6. Step 6: Final answer
    x = 694,127.10

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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.