Home / 681,063.24-939,867.26-394,749.40

Finding the Fourth Proportional to 681,063.24, 939,867.26 and 394,749.40

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Solution

The fourth proportional to 681,063.24, 939,867.26 and 394,749.40 is: 544,754.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,063.24 : 939,867.26 = 394,749.40 : x
  2. Step 2: Convert to fraction form
    681,063.24/939,867.26 = 394,749.40/x
  3. Step 3: Cross multiply
    681,063.24x = 939,867.26 × 394,749.40
  4. Step 4: Simplify right side
    681,063.24x = 371,012,036,964.64
  5. Step 5: Solve for x
    x = 371,012,036,964.64/681,063.24
  6. Step 6: Final answer
    x = 544,754.17

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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.