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Finding the Fourth Proportional to 2,492,978.92, 3,440,311.84 and 1,347,059.26

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Solution

The fourth proportional to 2,492,978.92, 3,440,311.84 and 1,347,059.26 is: 1,858,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,492,978.92 : 3,440,311.84 = 1,347,059.26 : x
  2. Step 2: Convert to fraction form
    2,492,978.92/3,440,311.84 = 1,347,059.26/x
  3. Step 3: Cross multiply
    2,492,978.92x = 3,440,311.84 × 1,347,059.26
  4. Step 4: Simplify right side
    2,492,978.92x = 4,634,303,919,766.64
  5. Step 5: Solve for x
    x = 4,634,303,919,766.64/2,492,978.92
  6. Step 6: Final answer
    x = 1,858,942.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.