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Finding the Fourth Proportional to 344,095.20, 515,122.20 and 255,740.40

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Solution

The fourth proportional to 344,095.20, 515,122.20 and 255,740.40 is: 382,852.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,095.20 : 515,122.20 = 255,740.40 : x
  2. Step 2: Convert to fraction form
    344,095.20/515,122.20 = 255,740.40/x
  3. Step 3: Cross multiply
    344,095.20x = 515,122.20 × 255,740.40
  4. Step 4: Simplify right side
    344,095.20x = 131,737,557,476.88
  5. Step 5: Solve for x
    x = 131,737,557,476.88/344,095.20
  6. Step 6: Final answer
    x = 382,852.06

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