Home / 383,983.08-529,909.38-209,562.84

Finding the Fourth Proportional to 383,983.08, 529,909.38 and 209,562.84

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Solution

The fourth proportional to 383,983.08, 529,909.38 and 209,562.84 is: 289,203.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,983.08 : 529,909.38 = 209,562.84 : x
  2. Step 2: Convert to fraction form
    383,983.08/529,909.38 = 209,562.84/x
  3. Step 3: Cross multiply
    383,983.08x = 529,909.38 × 209,562.84
  4. Step 4: Simplify right side
    383,983.08x = 111,049,313,814.57
  5. Step 5: Solve for x
    x = 111,049,313,814.57/383,983.08
  6. Step 6: Final answer
    x = 289,203.66

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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.