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Finding the Fourth Proportional to 620,675.73, 856,696.23 and 366,196.41

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Solution

The fourth proportional to 620,675.73, 856,696.23 and 366,196.41 is: 505,447.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,675.73 : 856,696.23 = 366,196.41 : x
  2. Step 2: Convert to fraction form
    620,675.73/856,696.23 = 366,196.41/x
  3. Step 3: Cross multiply
    620,675.73x = 856,696.23 × 366,196.41
  4. Step 4: Simplify right side
    620,675.73x = 313,719,083,886.53
  5. Step 5: Solve for x
    x = 313,719,083,886.53/620,675.73
  6. Step 6: Final answer
    x = 505,447.64

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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.