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Finding the Fourth Proportional to 503,856.53, 695,371.13 and 376,310.69

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Solution

The fourth proportional to 503,856.53, 695,371.13 and 376,310.69 is: 519,345.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,856.53 : 695,371.13 = 376,310.69 : x
  2. Step 2: Convert to fraction form
    503,856.53/695,371.13 = 376,310.69/x
  3. Step 3: Cross multiply
    503,856.53x = 695,371.13 × 376,310.69
  4. Step 4: Simplify right side
    503,856.53x = 261,675,587,854.83
  5. Step 5: Solve for x
    x = 261,675,587,854.83/503,856.53
  6. Step 6: Final answer
    x = 519,345.43

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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.