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Finding the Fourth Proportional to 576,851.84, 796,071.60 and 318,745.44

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Solution

The fourth proportional to 576,851.84, 796,071.60 and 318,745.44 is: 439,877.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,851.84 : 796,071.60 = 318,745.44 : x
  2. Step 2: Convert to fraction form
    576,851.84/796,071.60 = 318,745.44/x
  3. Step 3: Cross multiply
    576,851.84x = 796,071.60 × 318,745.44
  4. Step 4: Simplify right side
    576,851.84x = 253,744,192,413.50
  5. Step 5: Solve for x
    x = 253,744,192,413.50/576,851.84
  6. Step 6: Final answer
    x = 439,877.58

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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.