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Finding the Fourth Proportional to 392,602.68, 541,807.98 and 222,852.60

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Solution

The fourth proportional to 392,602.68, 541,807.98 and 222,852.60 is: 307,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,602.68 : 541,807.98 = 222,852.60 : x
  2. Step 2: Convert to fraction form
    392,602.68/541,807.98 = 222,852.60/x
  3. Step 3: Cross multiply
    392,602.68x = 541,807.98 × 222,852.60
  4. Step 4: Simplify right side
    392,602.68x = 120,743,317,043.75
  5. Step 5: Solve for x
    x = 120,743,317,043.75/392,602.68
  6. Step 6: Final answer
    x = 307,545.83

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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.