Home / 1,919,194.31-2,877,828.81-639,351.80

Finding the Fourth Proportional to 1,919,194.31, 2,877,828.81 and 639,351.80

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Solution

The fourth proportional to 1,919,194.31, 2,877,828.81 and 639,351.80 is: 958,707.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,194.31 : 2,877,828.81 = 639,351.80 : x
  2. Step 2: Convert to fraction form
    1,919,194.31/2,877,828.81 = 639,351.80/x
  3. Step 3: Cross multiply
    1,919,194.31x = 2,877,828.81 × 639,351.80
  4. Step 4: Simplify right side
    1,919,194.31x = 1,839,945,015,376.21
  5. Step 5: Solve for x
    x = 1,839,945,015,376.21/1,919,194.31
  6. Step 6: Final answer
    x = 958,707.00

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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.