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Finding the Fourth Proportional to 1,647,848.90, 2,469,008.55 and 804,584.90

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Solution

The fourth proportional to 1,647,848.90, 2,469,008.55 and 804,584.90 is: 1,205,527.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,848.90 : 2,469,008.55 = 804,584.90 : x
  2. Step 2: Convert to fraction form
    1,647,848.90/2,469,008.55 = 804,584.90/x
  3. Step 3: Cross multiply
    1,647,848.90x = 2,469,008.55 × 804,584.90
  4. Step 4: Simplify right side
    1,647,848.90x = 1,986,526,997,300.90
  5. Step 5: Solve for x
    x = 1,986,526,997,300.90/1,647,848.90
  6. Step 6: Final answer
    x = 1,205,527.40

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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.