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Finding the Fourth Proportional to 4,978,713.48, 7,469,399.14 and 1,784,162.58

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Solution

The fourth proportional to 4,978,713.48, 7,469,399.14 and 1,784,162.58 is: 2,676,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978,713.48 : 7,469,399.14 = 1,784,162.58 : x
  2. Step 2: Convert to fraction form
    4,978,713.48/7,469,399.14 = 1,784,162.58/x
  3. Step 3: Cross multiply
    4,978,713.48x = 7,469,399.14 × 1,784,162.58
  4. Step 4: Simplify right side
    4,978,713.48x = 13,326,622,440,672.18
  5. Step 5: Solve for x
    x = 13,326,622,440,672.18/4,978,713.48
  6. Step 6: Final answer
    x = 2,676,720.10

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