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Finding the Fourth Proportional to 325,974.80, 488,962.20 and 263,766.80

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Solution

The fourth proportional to 325,974.80, 488,962.20 and 263,766.80 is: 395,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,974.80 : 488,962.20 = 263,766.80 : x
  2. Step 2: Convert to fraction form
    325,974.80/488,962.20 = 263,766.80/x
  3. Step 3: Cross multiply
    325,974.80x = 488,962.20 × 263,766.80
  4. Step 4: Simplify right side
    325,974.80x = 128,971,994,814.96
  5. Step 5: Solve for x
    x = 128,971,994,814.96/325,974.80
  6. Step 6: Final answer
    x = 395,650.20

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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.