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Finding the Fourth Proportional to 412,145.73, 568,955.91 and 276,268.45

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Solution

The fourth proportional to 412,145.73, 568,955.91 and 276,268.45 is: 381,381.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,145.73 : 568,955.91 = 276,268.45 : x
  2. Step 2: Convert to fraction form
    412,145.73/568,955.91 = 276,268.45/x
  3. Step 3: Cross multiply
    412,145.73x = 568,955.91 × 276,268.45
  4. Step 4: Simplify right side
    412,145.73x = 157,184,565,288.75
  5. Step 5: Solve for x
    x = 157,184,565,288.75/412,145.73
  6. Step 6: Final answer
    x = 381,381.03

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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.