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Finding the Fourth Proportional to 404,866.11, 606,938.22 and 205,083.66

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Solution

The fourth proportional to 404,866.11, 606,938.22 and 205,083.66 is: 307,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,866.11 : 606,938.22 = 205,083.66 : x
  2. Step 2: Convert to fraction form
    404,866.11/606,938.22 = 205,083.66/x
  3. Step 3: Cross multiply
    404,866.11x = 606,938.22 × 205,083.66
  4. Step 4: Simplify right side
    404,866.11x = 124,473,111,551.49
  5. Step 5: Solve for x
    x = 124,473,111,551.49/404,866.11
  6. Step 6: Final answer
    x = 307,442.65

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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.