Home / 383,656.23-529,438.57-211,590.07

Finding the Fourth Proportional to 383,656.23, 529,438.57 and 211,590.07

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Solution

The fourth proportional to 383,656.23, 529,438.57 and 211,590.07 is: 291,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,656.23 : 529,438.57 = 211,590.07 : x
  2. Step 2: Convert to fraction form
    383,656.23/529,438.57 = 211,590.07/x
  3. Step 3: Cross multiply
    383,656.23x = 529,438.57 × 211,590.07
  4. Step 4: Simplify right side
    383,656.23x = 112,023,942,234.43
  5. Step 5: Solve for x
    x = 112,023,942,234.43/383,656.23
  6. Step 6: Final answer
    x = 291,990.42

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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.