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Finding the Fourth Proportional to 341,696.80, 512,545.20 and 308,519.20

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Solution

The fourth proportional to 341,696.80, 512,545.20 and 308,519.20 is: 462,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,696.80 : 512,545.20 = 308,519.20 : x
  2. Step 2: Convert to fraction form
    341,696.80/512,545.20 = 308,519.20/x
  3. Step 3: Cross multiply
    341,696.80x = 512,545.20 × 308,519.20
  4. Step 4: Simplify right side
    341,696.80x = 158,130,035,067.84
  5. Step 5: Solve for x
    x = 158,130,035,067.84/341,696.80
  6. Step 6: Final answer
    x = 462,778.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.