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Finding the Fourth Proportional to 505,674.40, 697,833.03 and 276,234.88

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Solution

The fourth proportional to 505,674.40, 697,833.03 and 276,234.88 is: 381,205.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,674.40 : 697,833.03 = 276,234.88 : x
  2. Step 2: Convert to fraction form
    505,674.40/697,833.03 = 276,234.88/x
  3. Step 3: Cross multiply
    505,674.40x = 697,833.03 × 276,234.88
  4. Step 4: Simplify right side
    505,674.40x = 192,765,823,302.09
  5. Step 5: Solve for x
    x = 192,765,823,302.09/505,674.40
  6. Step 6: Final answer
    x = 381,205.42

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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.