Home / 626,405.97-939,148.86-199,696.35

Finding the Fourth Proportional to 626,405.97, 939,148.86 and 199,696.35

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Solution

The fourth proportional to 626,405.97, 939,148.86 and 199,696.35 is: 299,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,405.97 : 939,148.86 = 199,696.35 : x
  2. Step 2: Convert to fraction form
    626,405.97/939,148.86 = 199,696.35/x
  3. Step 3: Cross multiply
    626,405.97x = 939,148.86 × 199,696.35
  4. Step 4: Simplify right side
    626,405.97x = 187,544,599,448.66
  5. Step 5: Solve for x
    x = 187,544,599,448.66/626,405.97
  6. Step 6: Final answer
    x = 299,397.85

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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.