Home / 639,156.22-958,865.55-189,837.07

Finding the Fourth Proportional to 639,156.22, 958,865.55 and 189,837.07

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Solution

The fourth proportional to 639,156.22, 958,865.55 and 189,837.07 is: 284,794.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,156.22 : 958,865.55 = 189,837.07 : x
  2. Step 2: Convert to fraction form
    639,156.22/958,865.55 = 189,837.07/x
  3. Step 3: Cross multiply
    639,156.22x = 958,865.55 × 189,837.07
  4. Step 4: Simplify right side
    639,156.22x = 182,028,223,426.89
  5. Step 5: Solve for x
    x = 182,028,223,426.89/639,156.22
  6. Step 6: Final answer
    x = 284,794.58

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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.