Home / 1,918,757.13-2,878,096.17-639,457.51

Finding the Fourth Proportional to 1,918,757.13, 2,878,096.17 and 639,457.51

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Solution

The fourth proportional to 1,918,757.13, 2,878,096.17 and 639,457.51 is: 959,173.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,757.13 : 2,878,096.17 = 639,457.51 : x
  2. Step 2: Convert to fraction form
    1,918,757.13/2,878,096.17 = 639,457.51/x
  3. Step 3: Cross multiply
    1,918,757.13x = 2,878,096.17 × 639,457.51
  4. Step 4: Simplify right side
    1,918,757.13x = 1,840,420,203,213.50
  5. Step 5: Solve for x
    x = 1,840,420,203,213.50/1,918,757.13
  6. Step 6: Final answer
    x = 959,173.09

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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.