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Finding the Fourth Proportional to 365,784.21, 504,954.79 and 275,174.69

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Solution

The fourth proportional to 365,784.21, 504,954.79 and 275,174.69 is: 379,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,784.21 : 504,954.79 = 275,174.69 : x
  2. Step 2: Convert to fraction form
    365,784.21/504,954.79 = 275,174.69/x
  3. Step 3: Cross multiply
    365,784.21x = 504,954.79 × 275,174.69
  4. Step 4: Simplify right side
    365,784.21x = 138,950,774,589.55
  5. Step 5: Solve for x
    x = 138,950,774,589.55/365,784.21
  6. Step 6: Final answer
    x = 379,870.89

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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.