Home / 639,565.62-959,181.30-190,165.47

Finding the Fourth Proportional to 639,565.62, 959,181.30 and 190,165.47

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Solution

The fourth proportional to 639,565.62, 959,181.30 and 190,165.47 is: 285,198.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,565.62 : 959,181.30 = 190,165.47 : x
  2. Step 2: Convert to fraction form
    639,565.62/959,181.30 = 190,165.47/x
  3. Step 3: Cross multiply
    639,565.62x = 959,181.30 × 190,165.47
  4. Step 4: Simplify right side
    639,565.62x = 182,403,162,729.71
  5. Step 5: Solve for x
    x = 182,403,162,729.71/639,565.62
  6. Step 6: Final answer
    x = 285,198.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.