Home / 854,791.20-1,179,241.20-515,066.40

Finding the Fourth Proportional to 854,791.20, 1,179,241.20 and 515,066.40

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Solution

The fourth proportional to 854,791.20, 1,179,241.20 and 515,066.40 is: 710,568.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,791.20 : 1,179,241.20 = 515,066.40 : x
  2. Step 2: Convert to fraction form
    854,791.20/1,179,241.20 = 515,066.40/x
  3. Step 3: Cross multiply
    854,791.20x = 1,179,241.20 × 515,066.40
  4. Step 4: Simplify right side
    854,791.20x = 607,387,519,615.68
  5. Step 5: Solve for x
    x = 607,387,519,615.68/854,791.20
  6. Step 6: Final answer
    x = 710,568.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.