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Finding the Fourth Proportional to 552,954.11, 763,028.05 and 307,920.37

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Solution

The fourth proportional to 552,954.11, 763,028.05 and 307,920.37 is: 424,903.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,954.11 : 763,028.05 = 307,920.37 : x
  2. Step 2: Convert to fraction form
    552,954.11/763,028.05 = 307,920.37/x
  3. Step 3: Cross multiply
    552,954.11x = 763,028.05 × 307,920.37
  4. Step 4: Simplify right side
    552,954.11x = 234,951,882,026.06
  5. Step 5: Solve for x
    x = 234,951,882,026.06/552,954.11
  6. Step 6: Final answer
    x = 424,903.04

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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.