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Finding the Fourth Proportional to 479,212.32, 718,883.28 and 163,584.48

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Solution

The fourth proportional to 479,212.32, 718,883.28 and 163,584.48 is: 245,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,212.32 : 718,883.28 = 163,584.48 : x
  2. Step 2: Convert to fraction form
    479,212.32/718,883.28 = 163,584.48/x
  3. Step 3: Cross multiply
    479,212.32x = 718,883.28 × 163,584.48
  4. Step 4: Simplify right side
    479,212.32x = 117,598,147,539.49
  5. Step 5: Solve for x
    x = 117,598,147,539.49/479,212.32
  6. Step 6: Final answer
    x = 245,398.84

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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.