Home / 383,318.29-528,982.72-211,242.42

Finding the Fourth Proportional to 383,318.29, 528,982.72 and 211,242.42

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Solution

The fourth proportional to 383,318.29, 528,982.72 and 211,242.42 is: 291,516.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,318.29 : 528,982.72 = 211,242.42 : x
  2. Step 2: Convert to fraction form
    383,318.29/528,982.72 = 211,242.42/x
  3. Step 3: Cross multiply
    383,318.29x = 528,982.72 × 211,242.42
  4. Step 4: Simplify right side
    383,318.29x = 111,743,589,382.88
  5. Step 5: Solve for x
    x = 111,743,589,382.88/383,318.29
  6. Step 6: Final answer
    x = 291,516.46

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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.