Home / 286,741.80-430,112.70-192,738.60

Finding the Fourth Proportional to 286,741.80, 430,112.70 and 192,738.60

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Solution

The fourth proportional to 286,741.80, 430,112.70 and 192,738.60 is: 289,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,741.80 : 430,112.70 = 192,738.60 : x
  2. Step 2: Convert to fraction form
    286,741.80/430,112.70 = 192,738.60/x
  3. Step 3: Cross multiply
    286,741.80x = 430,112.70 × 192,738.60
  4. Step 4: Simplify right side
    286,741.80x = 82,899,319,640.22
  5. Step 5: Solve for x
    x = 82,899,319,640.22/286,741.80
  6. Step 6: Final answer
    x = 289,107.90

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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.