Home / 383,468.18-529,216.30-211,416.58

Finding the Fourth Proportional to 383,468.18, 529,216.30 and 211,416.58

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Solution

The fourth proportional to 383,468.18, 529,216.30 and 211,416.58 is: 291,771.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,468.18 : 529,216.30 = 211,416.58 : x
  2. Step 2: Convert to fraction form
    383,468.18/529,216.30 = 211,416.58/x
  3. Step 3: Cross multiply
    383,468.18x = 529,216.30 × 211,416.58
  4. Step 4: Simplify right side
    383,468.18x = 111,885,101,152.05
  5. Step 5: Solve for x
    x = 111,885,101,152.05/383,468.18
  6. Step 6: Final answer
    x = 291,771.54

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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.