Home / 754,539.12-1,040,736.74-512,401.37

Finding the Fourth Proportional to 754,539.12, 1,040,736.74 and 512,401.37

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Solution

The fourth proportional to 754,539.12, 1,040,736.74 and 512,401.37 is: 706,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,539.12 : 1,040,736.74 = 512,401.37 : x
  2. Step 2: Convert to fraction form
    754,539.12/1,040,736.74 = 512,401.37/x
  3. Step 3: Cross multiply
    754,539.12x = 1,040,736.74 × 512,401.37
  4. Step 4: Simplify right side
    754,539.12x = 533,274,923,619.64
  5. Step 5: Solve for x
    x = 533,274,923,619.64/754,539.12
  6. Step 6: Final answer
    x = 706,755.83

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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.