Home / 419,939.40-629,909.10-153,708.60

Finding the Fourth Proportional to 419,939.40, 629,909.10 and 153,708.60

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Solution

The fourth proportional to 419,939.40, 629,909.10 and 153,708.60 is: 230,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,939.40 : 629,909.10 = 153,708.60 : x
  2. Step 2: Convert to fraction form
    419,939.40/629,909.10 = 153,708.60/x
  3. Step 3: Cross multiply
    419,939.40x = 629,909.10 × 153,708.60
  4. Step 4: Simplify right side
    419,939.40x = 96,822,445,888.26
  5. Step 5: Solve for x
    x = 96,822,445,888.26/419,939.40
  6. Step 6: Final answer
    x = 230,562.90

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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.