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Finding the Fourth Proportional to 2,966,216.64, 4,093,405.92 and 1,608,092.88

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Solution

The fourth proportional to 2,966,216.64, 4,093,405.92 and 1,608,092.88 is: 2,219,182.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966,216.64 : 4,093,405.92 = 1,608,092.88 : x
  2. Step 2: Convert to fraction form
    2,966,216.64/4,093,405.92 = 1,608,092.88/x
  3. Step 3: Cross multiply
    2,966,216.64x = 4,093,405.92 × 1,608,092.88
  4. Step 4: Simplify right side
    2,966,216.64x = 6,582,576,914,901.85
  5. Step 5: Solve for x
    x = 6,582,576,914,901.85/2,966,216.64
  6. Step 6: Final answer
    x = 2,219,182.79

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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.