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Finding the Fourth Proportional to 263,608.60, 395,412.90 and 193,106.20

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Solution

The fourth proportional to 263,608.60, 395,412.90 and 193,106.20 is: 289,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,608.60 : 395,412.90 = 193,106.20 : x
  2. Step 2: Convert to fraction form
    263,608.60/395,412.90 = 193,106.20/x
  3. Step 3: Cross multiply
    263,608.60x = 395,412.90 × 193,106.20
  4. Step 4: Simplify right side
    263,608.60x = 76,356,682,549.98
  5. Step 5: Solve for x
    x = 76,356,682,549.98/263,608.60
  6. Step 6: Final answer
    x = 289,659.30

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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.