Home / 665,968.86-998,787.02-261,243.33

Finding the Fourth Proportional to 665,968.86, 998,787.02 and 261,243.33

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Solution

The fourth proportional to 665,968.86, 998,787.02 and 261,243.33 is: 391,799.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,968.86 : 998,787.02 = 261,243.33 : x
  2. Step 2: Convert to fraction form
    665,968.86/998,787.02 = 261,243.33/x
  3. Step 3: Cross multiply
    665,968.86x = 998,787.02 × 261,243.33
  4. Step 4: Simplify right side
    665,968.86x = 260,926,445,759.36
  5. Step 5: Solve for x
    x = 260,926,445,759.36/665,968.86
  6. Step 6: Final answer
    x = 391,799.77

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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.