Home / 1,296,119.80-1,945,151.70-664,708.60

Finding the Fourth Proportional to 1,296,119.80, 1,945,151.70 and 664,708.60

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Solution

The fourth proportional to 1,296,119.80, 1,945,151.70 and 664,708.60 is: 997,561.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,119.80 : 1,945,151.70 = 664,708.60 : x
  2. Step 2: Convert to fraction form
    1,296,119.80/1,945,151.70 = 664,708.60/x
  3. Step 3: Cross multiply
    1,296,119.80x = 1,945,151.70 × 664,708.60
  4. Step 4: Simplify right side
    1,296,119.80x = 1,292,959,063,294.62
  5. Step 5: Solve for x
    x = 1,292,959,063,294.62/1,296,119.80
  6. Step 6: Final answer
    x = 997,561.39

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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.