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Finding the Fourth Proportional to 947,324.60, 1,420,986.90 and 947,324.60

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Solution

The fourth proportional to 947,324.60, 1,420,986.90 and 947,324.60 is: 1,420,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,324.60 : 1,420,986.90 = 947,324.60 : x
  2. Step 2: Convert to fraction form
    947,324.60/1,420,986.90 = 947,324.60/x
  3. Step 3: Cross multiply
    947,324.60x = 1,420,986.90 × 947,324.60
  4. Step 4: Simplify right side
    947,324.60x = 1,346,135,846,647.74
  5. Step 5: Solve for x
    x = 1,346,135,846,647.74/947,324.60
  6. Step 6: Final answer
    x = 1,420,986.90

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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.