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Finding the Fourth Proportional to 503,856.28, 695,370.78 and 376,310.44

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Solution

The fourth proportional to 503,856.28, 695,370.78 and 376,310.44 is: 519,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,856.28 : 695,370.78 = 376,310.44 : x
  2. Step 2: Convert to fraction form
    503,856.28/695,370.78 = 376,310.44/x
  3. Step 3: Cross multiply
    503,856.28x = 695,370.78 × 376,310.44
  4. Step 4: Simplify right side
    503,856.28x = 261,675,284,184.94
  5. Step 5: Solve for x
    x = 261,675,284,184.94/503,856.28
  6. Step 6: Final answer
    x = 519,345.09

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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.