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Finding the Fourth Proportional to 629,543.41, 868,767.19 and 343,063.49

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Solution

The fourth proportional to 629,543.41, 868,767.19 and 343,063.49 is: 473,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,543.41 : 868,767.19 = 343,063.49 : x
  2. Step 2: Convert to fraction form
    629,543.41/868,767.19 = 343,063.49/x
  3. Step 3: Cross multiply
    629,543.41x = 868,767.19 × 343,063.49
  4. Step 4: Simplify right side
    629,543.41x = 298,042,298,997.40
  5. Step 5: Solve for x
    x = 298,042,298,997.40/629,543.41
  6. Step 6: Final answer
    x = 473,426.13

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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.