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Finding the Fourth Proportional to 479,015.48, 718,786.50 and 179,702.84

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Solution

The fourth proportional to 479,015.48, 718,786.50 and 179,702.84 is: 269,653.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,015.48 : 718,786.50 = 179,702.84 : x
  2. Step 2: Convert to fraction form
    479,015.48/718,786.50 = 179,702.84/x
  3. Step 3: Cross multiply
    479,015.48x = 718,786.50 × 179,702.84
  4. Step 4: Simplify right side
    479,015.48x = 129,167,975,403.66
  5. Step 5: Solve for x
    x = 129,167,975,403.66/479,015.48
  6. Step 6: Final answer
    x = 269,653.03

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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.