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Finding the Fourth Proportional to 3,270,669.44, 4,905,617.78 and 874,699.76

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Solution

The fourth proportional to 3,270,669.44, 4,905,617.78 and 874,699.76 is: 1,311,946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270,669.44 : 4,905,617.78 = 874,699.76 : x
  2. Step 2: Convert to fraction form
    3,270,669.44/4,905,617.78 = 874,699.76/x
  3. Step 3: Cross multiply
    3,270,669.44x = 4,905,617.78 × 874,699.76
  4. Step 4: Simplify right side
    3,270,669.44x = 4,290,942,709,268.53
  5. Step 5: Solve for x
    x = 4,290,942,709,268.53/3,270,669.44
  6. Step 6: Final answer
    x = 1,311,946.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.