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Finding the Fourth Proportional to 480,906.60, 721,611.36 and 196,808.04

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Solution

The fourth proportional to 480,906.60, 721,611.36 and 196,808.04 is: 295,314.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,906.60 : 721,611.36 = 196,808.04 : x
  2. Step 2: Convert to fraction form
    480,906.60/721,611.36 = 196,808.04/x
  3. Step 3: Cross multiply
    480,906.60x = 721,611.36 × 196,808.04
  4. Step 4: Simplify right side
    480,906.60x = 142,018,917,403.33
  5. Step 5: Solve for x
    x = 142,018,917,403.33/480,906.60
  6. Step 6: Final answer
    x = 295,314.97

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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.