Home / 1,918,757.91-2,878,097.34-639,458.29

Finding the Fourth Proportional to 1,918,757.91, 2,878,097.34 and 639,458.29

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Solution

The fourth proportional to 1,918,757.91, 2,878,097.34 and 639,458.29 is: 959,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,757.91 : 2,878,097.34 = 639,458.29 : x
  2. Step 2: Convert to fraction form
    1,918,757.91/2,878,097.34 = 639,458.29/x
  3. Step 3: Cross multiply
    1,918,757.91x = 2,878,097.34 × 639,458.29
  4. Step 4: Simplify right side
    1,918,757.91x = 1,840,423,203,489.95
  5. Step 5: Solve for x
    x = 1,840,423,203,489.95/1,918,757.91
  6. Step 6: Final answer
    x = 959,174.26

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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.