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Finding the Fourth Proportional to 455,446.88, 628,468.98 and 264,422.96

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Solution

The fourth proportional to 455,446.88, 628,468.98 and 264,422.96 is: 364,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,446.88 : 628,468.98 = 264,422.96 : x
  2. Step 2: Convert to fraction form
    455,446.88/628,468.98 = 264,422.96/x
  3. Step 3: Cross multiply
    455,446.88x = 628,468.98 × 264,422.96
  4. Step 4: Simplify right side
    455,446.88x = 166,181,627,959.78
  5. Step 5: Solve for x
    x = 166,181,627,959.78/455,446.88
  6. Step 6: Final answer
    x = 364,875.98

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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.