Home / 383,310.85-528,961.84-211,244.75

Finding the Fourth Proportional to 383,310.85, 528,961.84 and 211,244.75

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Solution

The fourth proportional to 383,310.85, 528,961.84 and 211,244.75 is: 291,513.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,310.85 : 528,961.84 = 211,244.75 : x
  2. Step 2: Convert to fraction form
    383,310.85/528,961.84 = 211,244.75/x
  3. Step 3: Cross multiply
    383,310.85x = 528,961.84 × 211,244.75
  4. Step 4: Simplify right side
    383,310.85x = 111,740,412,444.63
  5. Step 5: Solve for x
    x = 111,740,412,444.63/383,310.85
  6. Step 6: Final answer
    x = 291,513.83

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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.