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Finding the Fourth Proportional to 366,552.15, 505,821.11 and 213,615.24

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Solution

The fourth proportional to 366,552.15, 505,821.11 and 213,615.24 is: 294,776.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,552.15 : 505,821.11 = 213,615.24 : x
  2. Step 2: Convert to fraction form
    366,552.15/505,821.11 = 213,615.24/x
  3. Step 3: Cross multiply
    366,552.15x = 505,821.11 × 213,615.24
  4. Step 4: Simplify right side
    366,552.15x = 108,051,097,809.72
  5. Step 5: Solve for x
    x = 108,051,097,809.72/366,552.15
  6. Step 6: Final answer
    x = 294,776.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.