Home / 641,589.57-961,946.91-325,436.85

Finding the Fourth Proportional to 641,589.57, 961,946.91 and 325,436.85

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Solution

The fourth proportional to 641,589.57, 961,946.91 and 325,436.85 is: 487,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,589.57 : 961,946.91 = 325,436.85 : x
  2. Step 2: Convert to fraction form
    641,589.57/961,946.91 = 325,436.85/x
  3. Step 3: Cross multiply
    641,589.57x = 961,946.91 × 325,436.85
  4. Step 4: Simplify right side
    641,589.57x = 313,052,972,257.63
  5. Step 5: Solve for x
    x = 313,052,972,257.63/641,589.57
  6. Step 6: Final answer
    x = 487,933.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.