Home / 639,142.02-958,548.99-189,758.62

Finding the Fourth Proportional to 639,142.02, 958,548.99 and 189,758.62

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Solution

The fourth proportional to 639,142.02, 958,548.99 and 189,758.62 is: 284,589.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,142.02 : 958,548.99 = 189,758.62 : x
  2. Step 2: Convert to fraction form
    639,142.02/958,548.99 = 189,758.62/x
  3. Step 3: Cross multiply
    639,142.02x = 958,548.99 × 189,758.62
  4. Step 4: Simplify right side
    639,142.02x = 181,892,933,544.79
  5. Step 5: Solve for x
    x = 181,892,933,544.79/639,142.02
  6. Step 6: Final answer
    x = 284,589.23

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1.5x scale

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.