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Finding the Fourth Proportional to 4,984,652.20, 7,476,978.30 and 3,071,464.60

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Solution

The fourth proportional to 4,984,652.20, 7,476,978.30 and 3,071,464.60 is: 4,607,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984,652.20 : 7,476,978.30 = 3,071,464.60 : x
  2. Step 2: Convert to fraction form
    4,984,652.20/7,476,978.30 = 3,071,464.60/x
  3. Step 3: Cross multiply
    4,984,652.20x = 7,476,978.30 × 3,071,464.60
  4. Step 4: Simplify right side
    4,984,652.20x = 22,965,274,163,418.18
  5. Step 5: Solve for x
    x = 22,965,274,163,418.18/4,984,652.20
  6. Step 6: Final answer
    x = 4,607,196.90

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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.