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Finding the Fourth Proportional to 6,441,477.54, 8,889,349.42 and 3,540,990.66

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Solution

The fourth proportional to 6,441,477.54, 8,889,349.42 and 3,540,990.66 is: 4,886,627.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441,477.54 : 8,889,349.42 = 3,540,990.66 : x
  2. Step 2: Convert to fraction form
    6,441,477.54/8,889,349.42 = 3,540,990.66/x
  3. Step 3: Cross multiply
    6,441,477.54x = 8,889,349.42 × 3,540,990.66
  4. Step 4: Simplify right side
    6,441,477.54x = 31,477,103,269,696.42
  5. Step 5: Solve for x
    x = 31,477,103,269,696.42/6,441,477.54
  6. Step 6: Final answer
    x = 4,886,627.81

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