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Finding the Fourth Proportional to 703,388.94, 970,141.14 and 605,438.88

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Solution

The fourth proportional to 703,388.94, 970,141.14 and 605,438.88 is: 835,044.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,388.94 : 970,141.14 = 605,438.88 : x
  2. Step 2: Convert to fraction form
    703,388.94/970,141.14 = 605,438.88/x
  3. Step 3: Cross multiply
    703,388.94x = 970,141.14 × 605,438.88
  4. Step 4: Simplify right side
    703,388.94x = 587,361,165,243.52
  5. Step 5: Solve for x
    x = 587,361,165,243.52/703,388.94
  6. Step 6: Final answer
    x = 835,044.64

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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.