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Finding the Fourth Proportional to 480,906.63, 721,525.73 and 214,850.79

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Solution

The fourth proportional to 480,906.63, 721,525.73 and 214,850.79 is: 322,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,906.63 : 721,525.73 = 214,850.79 : x
  2. Step 2: Convert to fraction form
    480,906.63/721,525.73 = 214,850.79/x
  3. Step 3: Cross multiply
    480,906.63x = 721,525.73 × 214,850.79
  4. Step 4: Simplify right side
    480,906.63x = 155,020,372,021.57
  5. Step 5: Solve for x
    x = 155,020,372,021.57/480,906.63
  6. Step 6: Final answer
    x = 322,350.25

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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.