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Finding the Fourth Proportional to 366,321.83, 505,539.80 and 213,335.33

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Solution

The fourth proportional to 366,321.83, 505,539.80 and 213,335.33 is: 294,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,321.83 : 505,539.80 = 213,335.33 : x
  2. Step 2: Convert to fraction form
    366,321.83/505,539.80 = 213,335.33/x
  3. Step 3: Cross multiply
    366,321.83x = 505,539.80 × 213,335.33
  4. Step 4: Simplify right side
    366,321.83x = 107,849,497,266.77
  5. Step 5: Solve for x
    x = 107,849,497,266.77/366,321.83
  6. Step 6: Final answer
    x = 294,411.88

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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.