Home / 286,175.20-394,696.43-253,504.56

Finding the Fourth Proportional to 286,175.20, 394,696.43 and 253,504.56

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Solution

The fourth proportional to 286,175.20, 394,696.43 and 253,504.56 is: 349,636.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,175.20 : 394,696.43 = 253,504.56 : x
  2. Step 2: Convert to fraction form
    286,175.20/394,696.43 = 253,504.56/x
  3. Step 3: Cross multiply
    286,175.20x = 394,696.43 × 253,504.56
  4. Step 4: Simplify right side
    286,175.20x = 100,057,343,763.78
  5. Step 5: Solve for x
    x = 100,057,343,763.78/286,175.20
  6. Step 6: Final answer
    x = 349,636.67

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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.