Home / 684,822.15-944,825.07-394,427.90

Finding the Fourth Proportional to 684,822.15, 944,825.07 and 394,427.90

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Solution

The fourth proportional to 684,822.15, 944,825.07 and 394,427.90 is: 544,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,822.15 : 944,825.07 = 394,427.90 : x
  2. Step 2: Convert to fraction form
    684,822.15/944,825.07 = 394,427.90/x
  3. Step 3: Cross multiply
    684,822.15x = 944,825.07 × 394,427.90
  4. Step 4: Simplify right side
    684,822.15x = 372,665,370,589.52
  5. Step 5: Solve for x
    x = 372,665,370,589.52/684,822.15
  6. Step 6: Final answer
    x = 544,178.33

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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.