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Finding the Fourth Proportional to 322,460.16, 481,517.28 and 263,412.48

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Solution

The fourth proportional to 322,460.16, 481,517.28 and 263,412.48 is: 393,343.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,460.16 : 481,517.28 = 263,412.48 : x
  2. Step 2: Convert to fraction form
    322,460.16/481,517.28 = 263,412.48/x
  3. Step 3: Cross multiply
    322,460.16x = 481,517.28 × 263,412.48
  4. Step 4: Simplify right side
    322,460.16x = 126,837,660,887.65
  5. Step 5: Solve for x
    x = 126,837,660,887.65/322,460.16
  6. Step 6: Final answer
    x = 393,343.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.