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Finding the Fourth Proportional to 605,890.97, 908,737.97 and 286,042.22

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Solution

The fourth proportional to 605,890.97, 908,737.97 and 286,042.22 is: 429,016.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,890.97 : 908,737.97 = 286,042.22 : x
  2. Step 2: Convert to fraction form
    605,890.97/908,737.97 = 286,042.22/x
  3. Step 3: Cross multiply
    605,890.97x = 908,737.97 × 286,042.22
  4. Step 4: Simplify right side
    605,890.97x = 259,937,420,363.19
  5. Step 5: Solve for x
    x = 259,937,420,363.19/605,890.97
  6. Step 6: Final answer
    x = 429,016.83

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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.