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Finding the Fourth Proportional to 505,614.68, 697,744.11 and 276,172.11

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Solution

The fourth proportional to 505,614.68, 697,744.11 and 276,172.11 is: 381,115.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,614.68 : 697,744.11 = 276,172.11 : x
  2. Step 2: Convert to fraction form
    505,614.68/697,744.11 = 276,172.11/x
  3. Step 3: Cross multiply
    505,614.68x = 697,744.11 × 276,172.11
  4. Step 4: Simplify right side
    505,614.68x = 192,697,459,446.59
  5. Step 5: Solve for x
    x = 192,697,459,446.59/505,614.68
  6. Step 6: Final answer
    x = 381,115.24

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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.