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Finding the Fourth Proportional to 6,619,491.84, 9,929,040 and 1,827,473.44

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Solution

The fourth proportional to 6,619,491.84, 9,929,040 and 1,827,473.44 is: 2,741,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619,491.84 : 9,929,040 = 1,827,473.44 : x
  2. Step 2: Convert to fraction form
    6,619,491.84/9,929,040 = 1,827,473.44/x
  3. Step 3: Cross multiply
    6,619,491.84x = 9,929,040 × 1,827,473.44
  4. Step 4: Simplify right side
    6,619,491.84x = 18,145,056,884,697.60
  5. Step 5: Solve for x
    x = 18,145,056,884,697.60/6,619,491.84
  6. Step 6: Final answer
    x = 2,741,155.56

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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.