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Finding the Fourth Proportional to 3,501,336.78, 4,831,840.08 and 1,891,704.78

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Solution

The fourth proportional to 3,501,336.78, 4,831,840.08 and 1,891,704.78 is: 2,610,550.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501,336.78 : 4,831,840.08 = 1,891,704.78 : x
  2. Step 2: Convert to fraction form
    3,501,336.78/4,831,840.08 = 1,891,704.78/x
  3. Step 3: Cross multiply
    3,501,336.78x = 4,831,840.08 × 1,891,704.78
  4. Step 4: Simplify right side
    3,501,336.78x = 9,140,414,975,531.58
  5. Step 5: Solve for x
    x = 9,140,414,975,531.58/3,501,336.78
  6. Step 6: Final answer
    x = 2,610,550.07

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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.