Home / 419,713.60-629,570.40-124,225.60

Finding the Fourth Proportional to 419,713.60, 629,570.40 and 124,225.60

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Solution

The fourth proportional to 419,713.60, 629,570.40 and 124,225.60 is: 186,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,713.60 : 629,570.40 = 124,225.60 : x
  2. Step 2: Convert to fraction form
    419,713.60/629,570.40 = 124,225.60/x
  3. Step 3: Cross multiply
    419,713.60x = 629,570.40 × 124,225.60
  4. Step 4: Simplify right side
    419,713.60x = 78,208,760,682.24
  5. Step 5: Solve for x
    x = 78,208,760,682.24/419,713.60
  6. Step 6: Final answer
    x = 186,338.40

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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.