Home / 645,984.26-968,976.69-290,583.05

Finding the Fourth Proportional to 645,984.26, 968,976.69 and 290,583.05

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Solution

The fourth proportional to 645,984.26, 968,976.69 and 290,583.05 is: 435,874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,984.26 : 968,976.69 = 290,583.05 : x
  2. Step 2: Convert to fraction form
    645,984.26/968,976.69 = 290,583.05/x
  3. Step 3: Cross multiply
    645,984.26x = 968,976.69 × 290,583.05
  4. Step 4: Simplify right side
    645,984.26x = 281,568,203,291.86
  5. Step 5: Solve for x
    x = 281,568,203,291.86/645,984.26
  6. Step 6: Final answer
    x = 435,874.72

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Double scale
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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.