Home / 626,019.79-939,104.19-199,405.82

Finding the Fourth Proportional to 626,019.79, 939,104.19 and 199,405.82

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Solution

The fourth proportional to 626,019.79, 939,104.19 and 199,405.82 is: 299,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,019.79 : 939,104.19 = 199,405.82 : x
  2. Step 2: Convert to fraction form
    626,019.79/939,104.19 = 199,405.82/x
  3. Step 3: Cross multiply
    626,019.79x = 939,104.19 × 199,405.82
  4. Step 4: Simplify right side
    626,019.79x = 187,262,836,376.87
  5. Step 5: Solve for x
    x = 187,262,836,376.87/626,019.79
  6. Step 6: Final answer
    x = 299,132.46

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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.