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Finding the Fourth Proportional to 366,573.75, 505,692.02 and 318,107.67

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Solution

The fourth proportional to 366,573.75, 505,692.02 and 318,107.67 is: 438,832.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,573.75 : 505,692.02 = 318,107.67 : x
  2. Step 2: Convert to fraction form
    366,573.75/505,692.02 = 318,107.67/x
  3. Step 3: Cross multiply
    366,573.75x = 505,692.02 × 318,107.67
  4. Step 4: Simplify right side
    366,573.75x = 160,864,511,015.06
  5. Step 5: Solve for x
    x = 160,864,511,015.06/366,573.75
  6. Step 6: Final answer
    x = 438,832.60

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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.