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Finding the Fourth Proportional to 5,791,736.80, 8,679,051.60 and 4,197,656.80

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Solution

The fourth proportional to 5,791,736.80, 8,679,051.60 and 4,197,656.80 is: 6,290,285.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791,736.80 : 8,679,051.60 = 4,197,656.80 : x
  2. Step 2: Convert to fraction form
    5,791,736.80/8,679,051.60 = 4,197,656.80/x
  3. Step 3: Cross multiply
    5,791,736.80x = 8,679,051.60 × 4,197,656.80
  4. Step 4: Simplify right side
    5,791,736.80x = 36,431,679,966,290.88
  5. Step 5: Solve for x
    x = 36,431,679,966,290.88/5,791,736.80
  6. Step 6: Final answer
    x = 6,290,285.84

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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.