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Finding the Fourth Proportional to 828,977.70, 1,243,466.55 and 828,977.70

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Solution

The fourth proportional to 828,977.70, 1,243,466.55 and 828,977.70 is: 1,243,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,977.70 : 1,243,466.55 = 828,977.70 : x
  2. Step 2: Convert to fraction form
    828,977.70/1,243,466.55 = 828,977.70/x
  3. Step 3: Cross multiply
    828,977.70x = 1,243,466.55 × 828,977.70
  4. Step 4: Simplify right side
    828,977.70x = 1,030,806,040,645.94
  5. Step 5: Solve for x
    x = 1,030,806,040,645.94/828,977.70
  6. Step 6: Final answer
    x = 1,243,466.55

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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.