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Finding the Fourth Proportional to 2,648,548.80, 3,972,823.20 and 966,859.20

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Solution

The fourth proportional to 2,648,548.80, 3,972,823.20 and 966,859.20 is: 1,450,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648,548.80 : 3,972,823.20 = 966,859.20 : x
  2. Step 2: Convert to fraction form
    2,648,548.80/3,972,823.20 = 966,859.20/x
  3. Step 3: Cross multiply
    2,648,548.80x = 3,972,823.20 × 966,859.20
  4. Step 4: Simplify right side
    2,648,548.80x = 3,841,160,660,893.44
  5. Step 5: Solve for x
    x = 3,841,160,660,893.44/2,648,548.80
  6. Step 6: Final answer
    x = 1,450,288.80

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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.