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Finding the Fourth Proportional to 827,168.90, 1,159,611.10 and 827,168.90

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Solution

The fourth proportional to 827,168.90, 1,159,611.10 and 827,168.90 is: 1,159,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,168.90 : 1,159,611.10 = 827,168.90 : x
  2. Step 2: Convert to fraction form
    827,168.90/1,159,611.10 = 827,168.90/x
  3. Step 3: Cross multiply
    827,168.90x = 1,159,611.10 × 827,168.90
  4. Step 4: Simplify right side
    827,168.90x = 959,194,238,014.79
  5. Step 5: Solve for x
    x = 959,194,238,014.79/827,168.90
  6. Step 6: Final answer
    x = 1,159,611.10

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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.