Home / 383,310.47-528,961.32-211,244.38

Finding the Fourth Proportional to 383,310.47, 528,961.32 and 211,244.38

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Solution

The fourth proportional to 383,310.47, 528,961.32 and 211,244.38 is: 291,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,310.47 : 528,961.32 = 211,244.38 : x
  2. Step 2: Convert to fraction form
    383,310.47/528,961.32 = 211,244.38/x
  3. Step 3: Cross multiply
    383,310.47x = 528,961.32 × 211,244.38
  4. Step 4: Simplify right side
    383,310.47x = 111,740,105,557.15
  5. Step 5: Solve for x
    x = 111,740,105,557.15/383,310.47
  6. Step 6: Final answer
    x = 291,513.31

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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.