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Finding the Fourth Proportional to 312,453.92, 468,676.72 and 75,798.56

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Solution

The fourth proportional to 312,453.92, 468,676.72 and 75,798.56 is: 113,696.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,453.92 : 468,676.72 = 75,798.56 : x
  2. Step 2: Convert to fraction form
    312,453.92/468,676.72 = 75,798.56/x
  3. Step 3: Cross multiply
    312,453.92x = 468,676.72 × 75,798.56
  4. Step 4: Simplify right side
    312,453.92x = 35,525,020,481.52
  5. Step 5: Solve for x
    x = 35,525,020,481.52/312,453.92
  6. Step 6: Final answer
    x = 113,696.83

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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.