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Finding the Fourth Proportional to 503,857.53, 695,372.51 and 376,311.69

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Solution

The fourth proportional to 503,857.53, 695,372.51 and 376,311.69 is: 519,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,857.53 : 695,372.51 = 376,311.69 : x
  2. Step 2: Convert to fraction form
    503,857.53/695,372.51 = 376,311.69/x
  3. Step 3: Cross multiply
    503,857.53x = 695,372.51 × 376,311.69
  4. Step 4: Simplify right side
    503,857.53x = 261,676,804,417.64
  5. Step 5: Solve for x
    x = 261,676,804,417.64/503,857.53
  6. Step 6: Final answer
    x = 519,346.82

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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.