Home / 262,880.19-394,283.22-85,389.34

Finding the Fourth Proportional to 262,880.19, 394,283.22 and 85,389.34

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Solution

The fourth proportional to 262,880.19, 394,283.22 and 85,389.34 is: 128,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,880.19 : 394,283.22 = 85,389.34 : x
  2. Step 2: Convert to fraction form
    262,880.19/394,283.22 = 85,389.34/x
  3. Step 3: Cross multiply
    262,880.19x = 394,283.22 × 85,389.34
  4. Step 4: Simplify right side
    262,880.19x = 33,667,583,928.87
  5. Step 5: Solve for x
    x = 33,667,583,928.87/262,880.19
  6. Step 6: Final answer
    x = 128,071.97

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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.