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Finding the Fourth Proportional to 505,614.93, 697,744.45 and 276,172.36

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Solution

The fourth proportional to 505,614.93, 697,744.45 and 276,172.36 is: 381,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,614.93 : 697,744.45 = 276,172.36 : x
  2. Step 2: Convert to fraction form
    505,614.93/697,744.45 = 276,172.36/x
  3. Step 3: Cross multiply
    505,614.93x = 697,744.45 × 276,172.36
  4. Step 4: Simplify right side
    505,614.93x = 192,697,729,689.04
  5. Step 5: Solve for x
    x = 192,697,729,689.04/505,614.93
  6. Step 6: Final answer
    x = 381,115.59

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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.