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Finding the Fourth Proportional to 828,968.20, 1,243,452.30 and 828,968.20

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Solution

The fourth proportional to 828,968.20, 1,243,452.30 and 828,968.20 is: 1,243,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,968.20 : 1,243,452.30 = 828,968.20 : x
  2. Step 2: Convert to fraction form
    828,968.20/1,243,452.30 = 828,968.20/x
  3. Step 3: Cross multiply
    828,968.20x = 1,243,452.30 × 828,968.20
  4. Step 4: Simplify right side
    828,968.20x = 1,030,782,414,916.86
  5. Step 5: Solve for x
    x = 1,030,782,414,916.86/828,968.20
  6. Step 6: Final answer
    x = 1,243,452.30

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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.