Home / 383,620.14-529,427.32-211,571.76

Finding the Fourth Proportional to 383,620.14, 529,427.32 and 211,571.76

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Solution

The fourth proportional to 383,620.14, 529,427.32 and 211,571.76 is: 291,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,620.14 : 529,427.32 = 211,571.76 : x
  2. Step 2: Convert to fraction form
    383,620.14/529,427.32 = 211,571.76/x
  3. Step 3: Cross multiply
    383,620.14x = 529,427.32 × 211,571.76
  4. Step 4: Simplify right side
    383,620.14x = 112,011,869,355.55
  5. Step 5: Solve for x
    x = 112,011,869,355.55/383,620.14
  6. Step 6: Final answer
    x = 291,986.42

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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.