Home / 291,072.26-436,577.67-77,861.69

Finding the Fourth Proportional to 291,072.26, 436,577.67 and 77,861.69

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Solution

The fourth proportional to 291,072.26, 436,577.67 and 77,861.69 is: 116,784.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,072.26 : 436,577.67 = 77,861.69 : x
  2. Step 2: Convert to fraction form
    291,072.26/436,577.67 = 77,861.69/x
  3. Step 3: Cross multiply
    291,072.26x = 436,577.67 × 77,861.69
  4. Step 4: Simplify right side
    291,072.26x = 33,992,673,019.57
  5. Step 5: Solve for x
    x = 33,992,673,019.57/291,072.26
  6. Step 6: Final answer
    x = 116,784.31

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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.