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Finding the Fourth Proportional to 503,690.18, 695,141.49 and 376,144.34

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Solution

The fourth proportional to 503,690.18, 695,141.49 and 376,144.34 is: 519,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,690.18 : 695,141.49 = 376,144.34 : x
  2. Step 2: Convert to fraction form
    503,690.18/695,141.49 = 376,144.34/x
  3. Step 3: Cross multiply
    503,690.18x = 695,141.49 × 376,144.34
  4. Step 4: Simplify right side
    503,690.18x = 261,473,536,962.67
  5. Step 5: Solve for x
    x = 261,473,536,962.67/503,690.18
  6. Step 6: Final answer
    x = 519,115.81

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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.