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Finding the Fourth Proportional to 325,302.72, 448,115.64 and 276,749.15

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Solution

The fourth proportional to 325,302.72, 448,115.64 and 276,749.15 is: 381,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,302.72 : 448,115.64 = 276,749.15 : x
  2. Step 2: Convert to fraction form
    325,302.72/448,115.64 = 276,749.15/x
  3. Step 3: Cross multiply
    325,302.72x = 448,115.64 × 276,749.15
  4. Step 4: Simplify right side
    325,302.72x = 124,015,619,077.49
  5. Step 5: Solve for x
    x = 124,015,619,077.49/325,302.72
  6. Step 6: Final answer
    x = 381,231.42

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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.