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Finding the Fourth Proportional to 366,940.80, 550,411.20 and 335,940.08

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Solution

The fourth proportional to 366,940.80, 550,411.20 and 335,940.08 is: 503,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,940.80 : 550,411.20 = 335,940.08 : x
  2. Step 2: Convert to fraction form
    366,940.80/550,411.20 = 335,940.08/x
  3. Step 3: Cross multiply
    366,940.80x = 550,411.20 × 335,940.08
  4. Step 4: Simplify right side
    366,940.80x = 184,905,179,808.84
  5. Step 5: Solve for x
    x = 184,905,179,808.84/366,940.80
  6. Step 6: Final answer
    x = 503,910.11

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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.