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Finding the Fourth Proportional to 3,892,700.55, 5,839,029.60 and 1,587,184.64

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Solution

The fourth proportional to 3,892,700.55, 5,839,029.60 and 1,587,184.64 is: 2,380,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892,700.55 : 5,839,029.60 = 1,587,184.64 : x
  2. Step 2: Convert to fraction form
    3,892,700.55/5,839,029.60 = 1,587,184.64/x
  3. Step 3: Cross multiply
    3,892,700.55x = 5,839,029.60 × 1,587,184.64
  4. Step 4: Simplify right side
    3,892,700.55x = 9,267,618,080,374.62
  5. Step 5: Solve for x
    x = 9,267,618,080,374.62/3,892,700.55
  6. Step 6: Final answer
    x = 2,380,768.30

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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.