Home / 685,791.18-1,028,311.79-544,543.79

Finding the Fourth Proportional to 685,791.18, 1,028,311.79 and 544,543.79

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Solution

The fourth proportional to 685,791.18, 1,028,311.79 and 544,543.79 is: 816,517.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,791.18 : 1,028,311.79 = 544,543.79 : x
  2. Step 2: Convert to fraction form
    685,791.18/1,028,311.79 = 544,543.79/x
  3. Step 3: Cross multiply
    685,791.18x = 1,028,311.79 × 544,543.79
  4. Step 4: Simplify right side
    685,791.18x = 559,960,791,564.01
  5. Step 5: Solve for x
    x = 559,960,791,564.01/685,791.18
  6. Step 6: Final answer
    x = 816,517.93

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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.