Home / 419,566.59-629,546.72-209,220.93

Finding the Fourth Proportional to 419,566.59, 629,546.72 and 209,220.93

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Solution

The fourth proportional to 419,566.59, 629,546.72 and 209,220.93 is: 313,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,566.59 : 629,546.72 = 209,220.93 : x
  2. Step 2: Convert to fraction form
    419,566.59/629,546.72 = 209,220.93/x
  3. Step 3: Cross multiply
    419,566.59x = 629,546.72 × 209,220.93
  4. Step 4: Simplify right side
    419,566.59x = 131,714,349,190.75
  5. Step 5: Solve for x
    x = 131,714,349,190.75/419,566.59
  6. Step 6: Final answer
    x = 313,929.55

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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.