Home / 684,943.44-945,218.34-394,448.82

Finding the Fourth Proportional to 684,943.44, 945,218.34 and 394,448.82

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Solution

The fourth proportional to 684,943.44, 945,218.34 and 394,448.82 is: 544,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,943.44 : 945,218.34 = 394,448.82 : x
  2. Step 2: Convert to fraction form
    684,943.44/945,218.34 = 394,448.82/x
  3. Step 3: Cross multiply
    684,943.44x = 945,218.34 × 394,448.82
  4. Step 4: Simplify right side
    684,943.44x = 372,840,258,855.36
  5. Step 5: Solve for x
    x = 372,840,258,855.36/684,943.44
  6. Step 6: Final answer
    x = 544,337.29

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Double scale
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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.