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Finding the Fourth Proportional to 504,939.35, 757,187.28 and 189,174.84

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Solution

The fourth proportional to 504,939.35, 757,187.28 and 189,174.84 is: 283,679.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,939.35 : 757,187.28 = 189,174.84 : x
  2. Step 2: Convert to fraction form
    504,939.35/757,187.28 = 189,174.84/x
  3. Step 3: Cross multiply
    504,939.35x = 757,187.28 × 189,174.84
  4. Step 4: Simplify right side
    504,939.35x = 143,240,782,544.04
  5. Step 5: Solve for x
    x = 143,240,782,544.04/504,939.35
  6. Step 6: Final answer
    x = 283,679.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.