Home / 645,185.49-967,715.71-195,910.31

Finding the Fourth Proportional to 645,185.49, 967,715.71 and 195,910.31

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Solution

The fourth proportional to 645,185.49, 967,715.71 and 195,910.31 is: 293,846.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,185.49 : 967,715.71 = 195,910.31 : x
  2. Step 2: Convert to fraction form
    645,185.49/967,715.71 = 195,910.31/x
  3. Step 3: Cross multiply
    645,185.49x = 967,715.71 × 195,910.31
  4. Step 4: Simplify right side
    645,185.49x = 189,585,484,737.97
  5. Step 5: Solve for x
    x = 189,585,484,737.97/645,185.49
  6. Step 6: Final answer
    x = 293,846.48

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Double scale
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Similar ratio
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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.