Home / 468,916.54-647,105.19-275,286.34

Finding the Fourth Proportional to 468,916.54, 647,105.19 and 275,286.34

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Solution

The fourth proportional to 468,916.54, 647,105.19 and 275,286.34 is: 379,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,916.54 : 647,105.19 = 275,286.34 : x
  2. Step 2: Convert to fraction form
    468,916.54/647,105.19 = 275,286.34/x
  3. Step 3: Cross multiply
    468,916.54x = 647,105.19 × 275,286.34
  4. Step 4: Simplify right side
    468,916.54x = 178,139,219,350.11
  5. Step 5: Solve for x
    x = 178,139,219,350.11/468,916.54
  6. Step 6: Final answer
    x = 379,895.36

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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.