Home / 489,895.93-734,890.12-190,399.44

Finding the Fourth Proportional to 489,895.93, 734,890.12 and 190,399.44

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Solution

The fourth proportional to 489,895.93, 734,890.12 and 190,399.44 is: 285,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,895.93 : 734,890.12 = 190,399.44 : x
  2. Step 2: Convert to fraction form
    489,895.93/734,890.12 = 190,399.44/x
  3. Step 3: Cross multiply
    489,895.93x = 734,890.12 × 190,399.44
  4. Step 4: Simplify right side
    489,895.93x = 139,922,669,589.37
  5. Step 5: Solve for x
    x = 139,922,669,589.37/489,895.93
  6. Step 6: Final answer
    x = 285,617.13

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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.