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Finding the Fourth Proportional to 676,722, 933,906.96 and 374,916

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Solution

The fourth proportional to 676,722, 933,906.96 and 374,916 is: 517,401.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,722 : 933,906.96 = 374,916 : x
  2. Step 2: Convert to fraction form
    676,722/933,906.96 = 374,916/x
  3. Step 3: Cross multiply
    676,722x = 933,906.96 × 374,916
  4. Step 4: Simplify right side
    676,722x = 350,136,661,815.36
  5. Step 5: Solve for x
    x = 350,136,661,815.36/676,722
  6. Step 6: Final answer
    x = 517,401.03

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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.