Home / 383,530.75-529,275.97-211,454.79

Finding the Fourth Proportional to 383,530.75, 529,275.97 and 211,454.79

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Solution

The fourth proportional to 383,530.75, 529,275.97 and 211,454.79 is: 291,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,530.75 : 529,275.97 = 211,454.79 : x
  2. Step 2: Convert to fraction form
    383,530.75/529,275.97 = 211,454.79/x
  3. Step 3: Cross multiply
    383,530.75x = 529,275.97 × 211,454.79
  4. Step 4: Simplify right side
    383,530.75x = 111,917,937,367.93
  5. Step 5: Solve for x
    x = 111,917,937,367.93/383,530.75
  6. Step 6: Final answer
    x = 291,809.56

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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.