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Finding the Fourth Proportional to 703,385.94, 970,137 and 605,435.88

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Solution

The fourth proportional to 703,385.94, 970,137 and 605,435.88 is: 835,040.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,385.94 : 970,137 = 605,435.88 : x
  2. Step 2: Convert to fraction form
    703,385.94/970,137 = 605,435.88/x
  3. Step 3: Cross multiply
    703,385.94x = 970,137 × 605,435.88
  4. Step 4: Simplify right side
    703,385.94x = 587,355,748,315.56
  5. Step 5: Solve for x
    x = 587,355,748,315.56/703,385.94
  6. Step 6: Final answer
    x = 835,040.50

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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.