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Finding the Fourth Proportional to 613,537.84, 919,531.32 and 276,219.28

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Solution

The fourth proportional to 613,537.84, 919,531.32 and 276,219.28 is: 413,979.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,537.84 : 919,531.32 = 276,219.28 : x
  2. Step 2: Convert to fraction form
    613,537.84/919,531.32 = 276,219.28/x
  3. Step 3: Cross multiply
    613,537.84x = 919,531.32 × 276,219.28
  4. Step 4: Simplify right side
    613,537.84x = 253,992,279,147.85
  5. Step 5: Solve for x
    x = 253,992,279,147.85/613,537.84
  6. Step 6: Final answer
    x = 413,979.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.