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Finding the Fourth Proportional to 363,479.60, 501,648.93 and 208,491.36

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Solution

The fourth proportional to 363,479.60, 501,648.93 and 208,491.36 is: 287,745.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,479.60 : 501,648.93 = 208,491.36 : x
  2. Step 2: Convert to fraction form
    363,479.60/501,648.93 = 208,491.36/x
  3. Step 3: Cross multiply
    363,479.60x = 501,648.93 × 208,491.36
  4. Step 4: Simplify right side
    363,479.60x = 104,589,467,658.25
  5. Step 5: Solve for x
    x = 104,589,467,658.25/363,479.60
  6. Step 6: Final answer
    x = 287,745.08

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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.