Home / 684,451.94-944,438.75-394,007.39

Finding the Fourth Proportional to 684,451.94, 944,438.75 and 394,007.39

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Solution

The fourth proportional to 684,451.94, 944,438.75 and 394,007.39 is: 543,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,451.94 : 944,438.75 = 394,007.39 : x
  2. Step 2: Convert to fraction form
    684,451.94/944,438.75 = 394,007.39/x
  3. Step 3: Cross multiply
    684,451.94x = 944,438.75 × 394,007.39
  4. Step 4: Simplify right side
    684,451.94x = 372,115,843,681.22
  5. Step 5: Solve for x
    x = 372,115,843,681.22/684,451.94
  6. Step 6: Final answer
    x = 543,669.79

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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.