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Finding the Fourth Proportional to 703,388.07, 970,565.90 and 416,861.91

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Solution

The fourth proportional to 703,388.07, 970,565.90 and 416,861.91 is: 575,204.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,388.07 : 970,565.90 = 416,861.91 : x
  2. Step 2: Convert to fraction form
    703,388.07/970,565.90 = 416,861.91/x
  3. Step 3: Cross multiply
    703,388.07x = 970,565.90 × 416,861.91
  4. Step 4: Simplify right side
    703,388.07x = 404,591,952,770.56
  5. Step 5: Solve for x
    x = 404,591,952,770.56/703,388.07
  6. Step 6: Final answer
    x = 575,204.46

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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.