Home / 626,019.05-939,103.07-199,405.07

Finding the Fourth Proportional to 626,019.05, 939,103.07 and 199,405.07

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Solution

The fourth proportional to 626,019.05, 939,103.07 and 199,405.07 is: 299,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,019.05 : 939,103.07 = 199,405.07 : x
  2. Step 2: Convert to fraction form
    626,019.05/939,103.07 = 199,405.07/x
  3. Step 3: Cross multiply
    626,019.05x = 939,103.07 × 199,405.07
  4. Step 4: Simplify right side
    626,019.05x = 187,261,907,718.02
  5. Step 5: Solve for x
    x = 187,261,907,718.02/626,019.05
  6. Step 6: Final answer
    x = 299,131.33

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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.