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Finding the Fourth Proportional to 455,057.66, 628,104.48 and 264,132.56

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Solution

The fourth proportional to 455,057.66, 628,104.48 and 264,132.56 is: 364,575.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,057.66 : 628,104.48 = 264,132.56 : x
  2. Step 2: Convert to fraction form
    455,057.66/628,104.48 = 264,132.56/x
  3. Step 3: Cross multiply
    455,057.66x = 628,104.48 × 264,132.56
  4. Step 4: Simplify right side
    455,057.66x = 165,902,844,829.63
  5. Step 5: Solve for x
    x = 165,902,844,829.63/455,057.66
  6. Step 6: Final answer
    x = 364,575.43

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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.