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Finding the Fourth Proportional to 827,205.90, 1,159,662.90 and 827,205.90

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Solution

The fourth proportional to 827,205.90, 1,159,662.90 and 827,205.90 is: 1,159,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,205.90 : 1,159,662.90 = 827,205.90 : x
  2. Step 2: Convert to fraction form
    827,205.90/1,159,662.90 = 827,205.90/x
  3. Step 3: Cross multiply
    827,205.90x = 1,159,662.90 × 827,205.90
  4. Step 4: Simplify right side
    827,205.90x = 959,279,992,891.11
  5. Step 5: Solve for x
    x = 959,279,992,891.11/827,205.90
  6. Step 6: Final answer
    x = 1,159,662.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.