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Finding the Fourth Proportional to 363,485.10, 501,656.57 and 208,496.96

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Solution

The fourth proportional to 363,485.10, 501,656.57 and 208,496.96 is: 287,752.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,485.10 : 501,656.57 = 208,496.96 : x
  2. Step 2: Convert to fraction form
    363,485.10/501,656.57 = 208,496.96/x
  3. Step 3: Cross multiply
    363,485.10x = 501,656.57 × 208,496.96
  4. Step 4: Simplify right side
    363,485.10x = 104,593,869,745.85
  5. Step 5: Solve for x
    x = 104,593,869,745.85/363,485.10
  6. Step 6: Final answer
    x = 287,752.84

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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.