Home / 383,318.35-528,982.81-211,242.49

Finding the Fourth Proportional to 383,318.35, 528,982.81 and 211,242.49

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Solution

The fourth proportional to 383,318.35, 528,982.81 and 211,242.49 is: 291,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,318.35 : 528,982.81 = 211,242.49 : x
  2. Step 2: Convert to fraction form
    383,318.35/528,982.81 = 211,242.49/x
  3. Step 3: Cross multiply
    383,318.35x = 528,982.81 × 211,242.49
  4. Step 4: Simplify right side
    383,318.35x = 111,743,645,951.60
  5. Step 5: Solve for x
    x = 111,743,645,951.60/383,318.35
  6. Step 6: Final answer
    x = 291,516.56

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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.