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Finding the Fourth Proportional to 3,784,554.88, 5,679,339.56 and 2,079,888.64

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Solution

The fourth proportional to 3,784,554.88, 5,679,339.56 and 2,079,888.64 is: 3,121,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784,554.88 : 5,679,339.56 = 2,079,888.64 : x
  2. Step 2: Convert to fraction form
    3,784,554.88/5,679,339.56 = 2,079,888.64/x
  3. Step 3: Cross multiply
    3,784,554.88x = 5,679,339.56 × 2,079,888.64
  4. Step 4: Simplify right side
    3,784,554.88x = 11,812,393,833,546.60
  5. Step 5: Solve for x
    x = 11,812,393,833,546.60/3,784,554.88
  6. Step 6: Final answer
    x = 3,121,210.87

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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.