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Finding the Fourth Proportional to 455,175.15, 682,544.63 and 215,089.22

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Solution

The fourth proportional to 455,175.15, 682,544.63 and 215,089.22 is: 322,530.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,175.15 : 682,544.63 = 215,089.22 : x
  2. Step 2: Convert to fraction form
    455,175.15/682,544.63 = 215,089.22/x
  3. Step 3: Cross multiply
    455,175.15x = 682,544.63 × 215,089.22
  4. Step 4: Simplify right side
    455,175.15x = 146,807,993,116.10
  5. Step 5: Solve for x
    x = 146,807,993,116.10/455,175.15
  6. Step 6: Final answer
    x = 322,530.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.