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Finding the Fourth Proportional to 339,819, 468,950.76 and 188,916

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Solution

The fourth proportional to 339,819, 468,950.76 and 188,916 is: 260,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,819 : 468,950.76 = 188,916 : x
  2. Step 2: Convert to fraction form
    339,819/468,950.76 = 188,916/x
  3. Step 3: Cross multiply
    339,819x = 468,950.76 × 188,916
  4. Step 4: Simplify right side
    339,819x = 88,592,301,776.16
  5. Step 5: Solve for x
    x = 88,592,301,776.16/339,819
  6. Step 6: Final answer
    x = 260,704.38

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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.