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Finding the Fourth Proportional to 671,161.95, 926,185.05 and 365,231.43

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Solution

The fourth proportional to 671,161.95, 926,185.05 and 365,231.43 is: 504,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,161.95 : 926,185.05 = 365,231.43 : x
  2. Step 2: Convert to fraction form
    671,161.95/926,185.05 = 365,231.43/x
  3. Step 3: Cross multiply
    671,161.95x = 926,185.05 × 365,231.43
  4. Step 4: Simplify right side
    671,161.95x = 338,271,890,256.12
  5. Step 5: Solve for x
    x = 338,271,890,256.12/671,161.95
  6. Step 6: Final answer
    x = 504,009.34

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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.