Home / 493,984.46-681,738.59-279,169.09

Finding the Fourth Proportional to 493,984.46, 681,738.59 and 279,169.09

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Solution

The fourth proportional to 493,984.46, 681,738.59 and 279,169.09 is: 385,275.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,984.46 : 681,738.59 = 279,169.09 : x
  2. Step 2: Convert to fraction form
    493,984.46/681,738.59 = 279,169.09/x
  3. Step 3: Cross multiply
    493,984.46x = 681,738.59 × 279,169.09
  4. Step 4: Simplify right side
    493,984.46x = 190,320,341,788.18
  5. Step 5: Solve for x
    x = 190,320,341,788.18/493,984.46
  6. Step 6: Final answer
    x = 385,275.97

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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.