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Finding the Fourth Proportional to 330,308.36, 455,827.94 and 179,405.32

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Solution

The fourth proportional to 330,308.36, 455,827.94 and 179,405.32 is: 247,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,308.36 : 455,827.94 = 179,405.32 : x
  2. Step 2: Convert to fraction form
    330,308.36/455,827.94 = 179,405.32/x
  3. Step 3: Cross multiply
    330,308.36x = 455,827.94 × 179,405.32
  4. Step 4: Simplify right side
    330,308.36x = 81,777,957,440.64
  5. Step 5: Solve for x
    x = 81,777,957,440.64/330,308.36
  6. Step 6: Final answer
    x = 247,580.65

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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.