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Finding the Fourth Proportional to 406,577, 561,076.26 and 247,601

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Solution

The fourth proportional to 406,577, 561,076.26 and 247,601 is: 341,689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,577 : 561,076.26 = 247,601 : x
  2. Step 2: Convert to fraction form
    406,577/561,076.26 = 247,601/x
  3. Step 3: Cross multiply
    406,577x = 561,076.26 × 247,601
  4. Step 4: Simplify right side
    406,577x = 138,923,043,052.26
  5. Step 5: Solve for x
    x = 138,923,043,052.26/406,577
  6. Step 6: Final answer
    x = 341,689.38

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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.