Home / 383,387.03-529,067.16-208,958.75

Finding the Fourth Proportional to 383,387.03, 529,067.16 and 208,958.75

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Solution

The fourth proportional to 383,387.03, 529,067.16 and 208,958.75 is: 288,359.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,387.03 : 529,067.16 = 208,958.75 : x
  2. Step 2: Convert to fraction form
    383,387.03/529,067.16 = 208,958.75/x
  3. Step 3: Cross multiply
    383,387.03x = 529,067.16 × 208,958.75
  4. Step 4: Simplify right side
    383,387.03x = 110,553,211,758.32
  5. Step 5: Solve for x
    x = 110,553,211,758.32/383,387.03
  6. Step 6: Final answer
    x = 288,359.29

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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.