Home / 591,761.40-816,628.80-319,828.44

Finding the Fourth Proportional to 591,761.40, 816,628.80 and 319,828.44

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Solution

The fourth proportional to 591,761.40, 816,628.80 and 319,828.44 is: 441,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,761.40 : 816,628.80 = 319,828.44 : x
  2. Step 2: Convert to fraction form
    591,761.40/816,628.80 = 319,828.44/x
  3. Step 3: Cross multiply
    591,761.40x = 816,628.80 × 319,828.44
  4. Step 4: Simplify right side
    591,761.40x = 261,181,115,163.07
  5. Step 5: Solve for x
    x = 261,181,115,163.07/591,761.40
  6. Step 6: Final answer
    x = 441,362.20

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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.