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Finding the Fourth Proportional to 703,033.88, 970,181.30 and 380,736.50

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Solution

The fourth proportional to 703,033.88, 970,181.30 and 380,736.50 is: 525,413.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,033.88 : 970,181.30 = 380,736.50 : x
  2. Step 2: Convert to fraction form
    703,033.88/970,181.30 = 380,736.50/x
  3. Step 3: Cross multiply
    703,033.88x = 970,181.30 × 380,736.50
  4. Step 4: Simplify right side
    703,033.88x = 369,383,430,623.77
  5. Step 5: Solve for x
    x = 369,383,430,623.77/703,033.88
  6. Step 6: Final answer
    x = 525,413.41

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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.