Home / 419,921.80-629,698.02-153,613.24

Finding the Fourth Proportional to 419,921.80, 629,698.02 and 153,613.24

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Solution

The fourth proportional to 419,921.80, 629,698.02 and 153,613.24 is: 230,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,921.80 : 629,698.02 = 153,613.24 : x
  2. Step 2: Convert to fraction form
    419,921.80/629,698.02 = 153,613.24/x
  3. Step 3: Cross multiply
    419,921.80x = 629,698.02 × 153,613.24
  4. Step 4: Simplify right side
    419,921.80x = 96,729,953,073.78
  5. Step 5: Solve for x
    x = 96,729,953,073.78/419,921.80
  6. Step 6: Final answer
    x = 230,352.30

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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.