Home / 913,019.44-1,260,139.80-611,736.88

Finding the Fourth Proportional to 913,019.44, 1,260,139.80 and 611,736.88

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Solution

The fourth proportional to 913,019.44, 1,260,139.80 and 611,736.88 is: 844,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,019.44 : 1,260,139.80 = 611,736.88 : x
  2. Step 2: Convert to fraction form
    913,019.44/1,260,139.80 = 611,736.88/x
  3. Step 3: Cross multiply
    913,019.44x = 1,260,139.80 × 611,736.88
  4. Step 4: Simplify right side
    913,019.44x = 770,873,989,615.82
  5. Step 5: Solve for x
    x = 770,873,989,615.82/913,019.44
  6. Step 6: Final answer
    x = 844,312.79

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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.