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Finding the Fourth Proportional to 494,574.81, 682,549.88 and 276,805.26

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Solution

The fourth proportional to 494,574.81, 682,549.88 and 276,805.26 is: 382,011.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,574.81 : 682,549.88 = 276,805.26 : x
  2. Step 2: Convert to fraction form
    494,574.81/682,549.88 = 276,805.26/x
  3. Step 3: Cross multiply
    494,574.81x = 682,549.88 × 276,805.26
  4. Step 4: Simplify right side
    494,574.81x = 188,933,395,612.34
  5. Step 5: Solve for x
    x = 188,933,395,612.34/494,574.81
  6. Step 6: Final answer
    x = 382,011.76

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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.