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Finding the Fourth Proportional to 622,292.78, 932,651.85 and 397,566.38

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Solution

The fourth proportional to 622,292.78, 932,651.85 and 397,566.38 is: 595,846.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,292.78 : 932,651.85 = 397,566.38 : x
  2. Step 2: Convert to fraction form
    622,292.78/932,651.85 = 397,566.38/x
  3. Step 3: Cross multiply
    622,292.78x = 932,651.85 × 397,566.38
  4. Step 4: Simplify right side
    622,292.78x = 370,791,019,804.80
  5. Step 5: Solve for x
    x = 370,791,019,804.80/622,292.78
  6. Step 6: Final answer
    x = 595,846.57

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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.