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Finding the Fourth Proportional to 505,617.10, 697,747.44 and 276,174.52

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Solution

The fourth proportional to 505,617.10, 697,747.44 and 276,174.52 is: 381,118.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,617.10 : 697,747.44 = 276,174.52 : x
  2. Step 2: Convert to fraction form
    505,617.10/697,747.44 = 276,174.52/x
  3. Step 3: Cross multiply
    505,617.10x = 697,747.44 × 276,174.52
  4. Step 4: Simplify right side
    505,617.10x = 192,700,064,323.23
  5. Step 5: Solve for x
    x = 192,700,064,323.23/505,617.10
  6. Step 6: Final answer
    x = 381,118.57

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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.