Home / 681,065.24-939,870.02-394,751.40

Finding the Fourth Proportional to 681,065.24, 939,870.02 and 394,751.40

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Solution

The fourth proportional to 681,065.24, 939,870.02 and 394,751.40 is: 544,756.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,065.24 : 939,870.02 = 394,751.40 : x
  2. Step 2: Convert to fraction form
    681,065.24/939,870.02 = 394,751.40/x
  3. Step 3: Cross multiply
    681,065.24x = 939,870.02 × 394,751.40
  4. Step 4: Simplify right side
    681,065.24x = 371,015,006,213.03
  5. Step 5: Solve for x
    x = 371,015,006,213.03/681,065.24
  6. Step 6: Final answer
    x = 544,756.93

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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.