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Finding the Fourth Proportional to 503,859.28, 695,374.92 and 376,313.44

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Solution

The fourth proportional to 503,859.28, 695,374.92 and 376,313.44 is: 519,349.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,859.28 : 695,374.92 = 376,313.44 : x
  2. Step 2: Convert to fraction form
    503,859.28/695,374.92 = 376,313.44/x
  3. Step 3: Cross multiply
    503,859.28x = 695,374.92 × 376,313.44
  4. Step 4: Simplify right side
    503,859.28x = 261,678,928,234.93
  5. Step 5: Solve for x
    x = 261,678,928,234.93/503,859.28
  6. Step 6: Final answer
    x = 519,349.23

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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.