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Finding the Fourth Proportional to 313,960.28, 470,940.51 and 92,344.28

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Solution

The fourth proportional to 313,960.28, 470,940.51 and 92,344.28 is: 138,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,960.28 : 470,940.51 = 92,344.28 : x
  2. Step 2: Convert to fraction form
    313,960.28/470,940.51 = 92,344.28/x
  3. Step 3: Cross multiply
    313,960.28x = 470,940.51 × 92,344.28
  4. Step 4: Simplify right side
    313,960.28x = 43,488,662,318.78
  5. Step 5: Solve for x
    x = 43,488,662,318.78/313,960.28
  6. Step 6: Final answer
    x = 138,516.45

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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.