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Finding the Fourth Proportional to 603,433.07, 905,940.67 and 404,642.97

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Solution

The fourth proportional to 603,433.07, 905,940.67 and 404,642.97 is: 607,494.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,433.07 : 905,940.67 = 404,642.97 : x
  2. Step 2: Convert to fraction form
    603,433.07/905,940.67 = 404,642.97/x
  3. Step 3: Cross multiply
    603,433.07x = 905,940.67 × 404,642.97
  4. Step 4: Simplify right side
    603,433.07x = 366,582,523,099.69
  5. Step 5: Solve for x
    x = 366,582,523,099.69/603,433.07
  6. Step 6: Final answer
    x = 607,494.92

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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.