Home / 1,919,195.31-2,877,830.31-639,352.80

Finding the Fourth Proportional to 1,919,195.31, 2,877,830.31 and 639,352.80

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Solution

The fourth proportional to 1,919,195.31, 2,877,830.31 and 639,352.80 is: 958,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,195.31 : 2,877,830.31 = 639,352.80 : x
  2. Step 2: Convert to fraction form
    1,919,195.31/2,877,830.31 = 639,352.80/x
  3. Step 3: Cross multiply
    1,919,195.31x = 2,877,830.31 × 639,352.80
  4. Step 4: Simplify right side
    1,919,195.31x = 1,839,948,866,623.37
  5. Step 5: Solve for x
    x = 1,839,948,866,623.37/1,919,195.31
  6. Step 6: Final answer
    x = 958,708.51

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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.