Home / 351,653.10-485,280.63-190,512.18

Finding the Fourth Proportional to 351,653.10, 485,280.63 and 190,512.18

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Solution

The fourth proportional to 351,653.10, 485,280.63 and 190,512.18 is: 262,906.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,653.10 : 485,280.63 = 190,512.18 : x
  2. Step 2: Convert to fraction form
    351,653.10/485,280.63 = 190,512.18/x
  3. Step 3: Cross multiply
    351,653.10x = 485,280.63 × 190,512.18
  4. Step 4: Simplify right side
    351,653.10x = 92,451,870,733.07
  5. Step 5: Solve for x
    x = 92,451,870,733.07/351,653.10
  6. Step 6: Final answer
    x = 262,906.46

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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.