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Finding the Fourth Proportional to 703,190.86, 970,333.86 and 393,035.38

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Solution

The fourth proportional to 703,190.86, 970,333.86 and 393,035.38 is: 542,349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,190.86 : 970,333.86 = 393,035.38 : x
  2. Step 2: Convert to fraction form
    703,190.86/970,333.86 = 393,035.38/x
  3. Step 3: Cross multiply
    703,190.86x = 970,333.86 × 393,035.38
  4. Step 4: Simplify right side
    703,190.86x = 381,375,537,391.97
  5. Step 5: Solve for x
    x = 381,375,537,391.97/703,190.86
  6. Step 6: Final answer
    x = 542,349.96

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1.5x scale

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.