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Finding the Fourth Proportional to 406,578.64, 561,086.64 and 236,823.70

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Solution

The fourth proportional to 406,578.64, 561,086.64 and 236,823.70 is: 326,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,578.64 : 561,086.64 = 236,823.70 : x
  2. Step 2: Convert to fraction form
    406,578.64/561,086.64 = 236,823.70/x
  3. Step 3: Cross multiply
    406,578.64x = 561,086.64 × 236,823.70
  4. Step 4: Simplify right side
    406,578.64x = 132,878,614,105.37
  5. Step 5: Solve for x
    x = 132,878,614,105.37/406,578.64
  6. Step 6: Final answer
    x = 326,821.43

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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.