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Finding the Fourth Proportional to 455,760.68, 628,821.77 and 262,158.26

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Solution

The fourth proportional to 455,760.68, 628,821.77 and 262,158.26 is: 361,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,760.68 : 628,821.77 = 262,158.26 : x
  2. Step 2: Convert to fraction form
    455,760.68/628,821.77 = 262,158.26/x
  3. Step 3: Cross multiply
    455,760.68x = 628,821.77 × 262,158.26
  4. Step 4: Simplify right side
    455,760.68x = 164,850,816,618.42
  5. Step 5: Solve for x
    x = 164,850,816,618.42/455,760.68
  6. Step 6: Final answer
    x = 361,704.78

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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.