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Finding the Fourth Proportional to 578,969.73, 798,885.21 and 363,957.56

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Solution

The fourth proportional to 578,969.73, 798,885.21 and 363,957.56 is: 502,202.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,969.73 : 798,885.21 = 363,957.56 : x
  2. Step 2: Convert to fraction form
    578,969.73/798,885.21 = 363,957.56/x
  3. Step 3: Cross multiply
    578,969.73x = 798,885.21 × 363,957.56
  4. Step 4: Simplify right side
    578,969.73x = 290,760,307,757.26
  5. Step 5: Solve for x
    x = 290,760,307,757.26/578,969.73
  6. Step 6: Final answer
    x = 502,202.95

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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.