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Finding the Fourth Proportional to 986,448.60, 1,479,672.90 and 827,016.30

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Solution

The fourth proportional to 986,448.60, 1,479,672.90 and 827,016.30 is: 1,240,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,448.60 : 1,479,672.90 = 827,016.30 : x
  2. Step 2: Convert to fraction form
    986,448.60/1,479,672.90 = 827,016.30/x
  3. Step 3: Cross multiply
    986,448.60x = 1,479,672.90 × 827,016.30
  4. Step 4: Simplify right side
    986,448.60x = 1,223,713,606,968.27
  5. Step 5: Solve for x
    x = 1,223,713,606,968.27/986,448.60
  6. Step 6: Final answer
    x = 1,240,524.45

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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.