Home / 689,042.94-1,033,583.85-190,406.94

Finding the Fourth Proportional to 689,042.94, 1,033,583.85 and 190,406.94

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Solution

The fourth proportional to 689,042.94, 1,033,583.85 and 190,406.94 is: 285,615.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,042.94 : 1,033,583.85 = 190,406.94 : x
  2. Step 2: Convert to fraction form
    689,042.94/1,033,583.85 = 190,406.94/x
  3. Step 3: Cross multiply
    689,042.94x = 1,033,583.85 × 190,406.94
  4. Step 4: Simplify right side
    689,042.94x = 196,801,538,111.92
  5. Step 5: Solve for x
    x = 196,801,538,111.92/689,042.94
  6. Step 6: Final answer
    x = 285,615.78

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.