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Finding the Fourth Proportional to 5,394,651.90, 8,090,941.05 and 1,608,258.30

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Solution

The fourth proportional to 5,394,651.90, 8,090,941.05 and 1,608,258.30 is: 2,412,078.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394,651.90 : 8,090,941.05 = 1,608,258.30 : x
  2. Step 2: Convert to fraction form
    5,394,651.90/8,090,941.05 = 1,608,258.30/x
  3. Step 3: Cross multiply
    5,394,651.90x = 8,090,941.05 × 1,608,258.30
  4. Step 4: Simplify right side
    5,394,651.90x = 13,012,323,098,473.21
  5. Step 5: Solve for x
    x = 13,012,323,098,473.21/5,394,651.90
  6. Step 6: Final answer
    x = 2,412,078.36

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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.