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Finding the Fourth Proportional to 455,515.74, 628,611.72 and 264,541.43

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Solution

The fourth proportional to 455,515.74, 628,611.72 and 264,541.43 is: 365,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,515.74 : 628,611.72 = 264,541.43 : x
  2. Step 2: Convert to fraction form
    455,515.74/628,611.72 = 264,541.43/x
  3. Step 3: Cross multiply
    455,515.74x = 628,611.72 × 264,541.43
  4. Step 4: Simplify right side
    455,515.74x = 166,293,844,708.47
  5. Step 5: Solve for x
    x = 166,293,844,708.47/455,515.74
  6. Step 6: Final answer
    x = 365,067.18

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Why These Related Problems?

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