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Finding the Fourth Proportional to 374,736.55, 517,305.30 and 238,953.01

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Solution

The fourth proportional to 374,736.55, 517,305.30 and 238,953.01 is: 329,862.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,736.55 : 517,305.30 = 238,953.01 : x
  2. Step 2: Convert to fraction form
    374,736.55/517,305.30 = 238,953.01/x
  3. Step 3: Cross multiply
    374,736.55x = 517,305.30 × 238,953.01
  4. Step 4: Simplify right side
    374,736.55x = 123,611,658,523.95
  5. Step 5: Solve for x
    x = 123,611,658,523.95/374,736.55
  6. Step 6: Final answer
    x = 329,862.83

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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.