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Finding the Fourth Proportional to 325,632.82, 487,858.72 and 318,546.94

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Solution

The fourth proportional to 325,632.82, 487,858.72 and 318,546.94 is: 477,242.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,632.82 : 487,858.72 = 318,546.94 : x
  2. Step 2: Convert to fraction form
    325,632.82/487,858.72 = 318,546.94/x
  3. Step 3: Cross multiply
    325,632.82x = 487,858.72 × 318,546.94
  4. Step 4: Simplify right side
    325,632.82x = 155,405,902,408.32
  5. Step 5: Solve for x
    x = 155,405,902,408.32/325,632.82
  6. Step 6: Final answer
    x = 477,242.75

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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.