Home / 697,172.85-961,879.19-391,204.26

Finding the Fourth Proportional to 697,172.85, 961,879.19 and 391,204.26

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Solution

The fourth proportional to 697,172.85, 961,879.19 and 391,204.26 is: 539,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,172.85 : 961,879.19 = 391,204.26 : x
  2. Step 2: Convert to fraction form
    697,172.85/961,879.19 = 391,204.26/x
  3. Step 3: Cross multiply
    697,172.85x = 961,879.19 × 391,204.26
  4. Step 4: Simplify right side
    697,172.85x = 376,291,234,777.33
  5. Step 5: Solve for x
    x = 376,291,234,777.33/697,172.85
  6. Step 6: Final answer
    x = 539,738.80

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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.