Home / 939,800.42-1,296,334.53-557,556.50

Finding the Fourth Proportional to 939,800.42, 1,296,334.53 and 557,556.50

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Solution

The fourth proportional to 939,800.42, 1,296,334.53 and 557,556.50 is: 769,077.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,800.42 : 1,296,334.53 = 557,556.50 : x
  2. Step 2: Convert to fraction form
    939,800.42/1,296,334.53 = 557,556.50/x
  3. Step 3: Cross multiply
    939,800.42x = 1,296,334.53 × 557,556.50
  4. Step 4: Simplify right side
    939,800.42x = 722,779,743,375.95
  5. Step 5: Solve for x
    x = 722,779,743,375.95/939,800.42
  6. Step 6: Final answer
    x = 769,077.91

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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.