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Finding the Fourth Proportional to 263,556, 395,289.50 and 73,972.86

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Solution

The fourth proportional to 263,556, 395,289.50 and 73,972.86 is: 110,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,556 : 395,289.50 = 73,972.86 : x
  2. Step 2: Convert to fraction form
    263,556/395,289.50 = 73,972.86/x
  3. Step 3: Cross multiply
    263,556x = 395,289.50 × 73,972.86
  4. Step 4: Simplify right side
    263,556x = 29,240,694,842.97
  5. Step 5: Solve for x
    x = 29,240,694,842.97/263,556
  6. Step 6: Final answer
    x = 110,946.80

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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.