Home / 1,272,084.09-1,908,369.14-419,401.41

Finding the Fourth Proportional to 1,272,084.09, 1,908,369.14 and 419,401.41

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Solution

The fourth proportional to 1,272,084.09, 1,908,369.14 and 419,401.41 is: 629,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,084.09 : 1,908,369.14 = 419,401.41 : x
  2. Step 2: Convert to fraction form
    1,272,084.09/1,908,369.14 = 419,401.41/x
  3. Step 3: Cross multiply
    1,272,084.09x = 1,908,369.14 × 419,401.41
  4. Step 4: Simplify right side
    1,272,084.09x = 800,372,706,019.48
  5. Step 5: Solve for x
    x = 800,372,706,019.48/1,272,084.09
  6. Step 6: Final answer
    x = 629,182.23

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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.