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Finding the Fourth Proportional to 6,387,967.50, 8,815,314.69 and 3,634,646.28

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Solution

The fourth proportional to 6,387,967.50, 8,815,314.69 and 3,634,646.28 is: 5,015,766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387,967.50 : 8,815,314.69 = 3,634,646.28 : x
  2. Step 2: Convert to fraction form
    6,387,967.50/8,815,314.69 = 3,634,646.28/x
  3. Step 3: Cross multiply
    6,387,967.50x = 8,815,314.69 × 3,634,646.28
  4. Step 4: Simplify right side
    6,387,967.50x = 32,040,550,745,037.85
  5. Step 5: Solve for x
    x = 32,040,550,745,037.85/6,387,967.50
  6. Step 6: Final answer
    x = 5,015,766.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.