Home / 496,738.44-685,238.94-289,819.08

Finding the Fourth Proportional to 496,738.44, 685,238.94 and 289,819.08

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Solution

The fourth proportional to 496,738.44, 685,238.94 and 289,819.08 is: 399,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,738.44 : 685,238.94 = 289,819.08 : x
  2. Step 2: Convert to fraction form
    496,738.44/685,238.94 = 289,819.08/x
  3. Step 3: Cross multiply
    496,738.44x = 685,238.94 × 289,819.08
  4. Step 4: Simplify right side
    496,738.44x = 198,595,319,170.98
  5. Step 5: Solve for x
    x = 198,595,319,170.98/496,738.44
  6. Step 6: Final answer
    x = 399,798.57

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1.5x scale

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.