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Finding the Fourth Proportional to 374,998.35, 517,564.97 and 211,704.51

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Solution

The fourth proportional to 374,998.35, 517,564.97 and 211,704.51 is: 292,190.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,998.35 : 517,564.97 = 211,704.51 : x
  2. Step 2: Convert to fraction form
    374,998.35/517,564.97 = 211,704.51/x
  3. Step 3: Cross multiply
    374,998.35x = 517,564.97 × 211,704.51
  4. Step 4: Simplify right side
    374,998.35x = 109,570,838,367.02
  5. Step 5: Solve for x
    x = 109,570,838,367.02/374,998.35
  6. Step 6: Final answer
    x = 292,190.19

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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.