Home / 383,614.32-529,388.96-209,183.20

Finding the Fourth Proportional to 383,614.32, 529,388.96 and 209,183.20

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Solution

The fourth proportional to 383,614.32, 529,388.96 and 209,183.20 is: 288,673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,614.32 : 529,388.96 = 209,183.20 : x
  2. Step 2: Convert to fraction form
    383,614.32/529,388.96 = 209,183.20/x
  3. Step 3: Cross multiply
    383,614.32x = 529,388.96 × 209,183.20
  4. Step 4: Simplify right side
    383,614.32x = 110,739,276,697.47
  5. Step 5: Solve for x
    x = 110,739,276,697.47/383,614.32
  6. Step 6: Final answer
    x = 288,673.47

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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.