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Finding the Fourth Proportional to 298,288.44, 411,642.36 and 162,326.28

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Solution

The fourth proportional to 298,288.44, 411,642.36 and 162,326.28 is: 224,012.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,288.44 : 411,642.36 = 162,326.28 : x
  2. Step 2: Convert to fraction form
    298,288.44/411,642.36 = 162,326.28/x
  3. Step 3: Cross multiply
    298,288.44x = 411,642.36 × 162,326.28
  4. Step 4: Simplify right side
    298,288.44x = 66,820,372,989.22
  5. Step 5: Solve for x
    x = 66,820,372,989.22/298,288.44
  6. Step 6: Final answer
    x = 224,012.61

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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.