Home / 626,106.28-863,067.96-383,939.80

Finding the Fourth Proportional to 626,106.28, 863,067.96 and 383,939.80

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Solution

The fourth proportional to 626,106.28, 863,067.96 and 383,939.80 is: 529,249.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,106.28 : 863,067.96 = 383,939.80 : x
  2. Step 2: Convert to fraction form
    626,106.28/863,067.96 = 383,939.80/x
  3. Step 3: Cross multiply
    626,106.28x = 863,067.96 × 383,939.80
  4. Step 4: Simplify right side
    626,106.28x = 331,366,139,948.81
  5. Step 5: Solve for x
    x = 331,366,139,948.81/626,106.28
  6. Step 6: Final answer
    x = 529,249.03

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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.