Home / 419,936.40-629,904.60-153,608.40

Finding the Fourth Proportional to 419,936.40, 629,904.60 and 153,608.40

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Solution

The fourth proportional to 419,936.40, 629,904.60 and 153,608.40 is: 230,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,936.40 : 629,904.60 = 153,608.40 : x
  2. Step 2: Convert to fraction form
    419,936.40/629,904.60 = 153,608.40/x
  3. Step 3: Cross multiply
    419,936.40x = 629,904.60 × 153,608.40
  4. Step 4: Simplify right side
    419,936.40x = 96,758,637,758.64
  5. Step 5: Solve for x
    x = 96,758,637,758.64/419,936.40
  6. Step 6: Final answer
    x = 230,412.60

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1.5x scale

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.