Home / 639,176.25-958,895.59-189,857.10

Finding the Fourth Proportional to 639,176.25, 958,895.59 and 189,857.10

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Solution

The fourth proportional to 639,176.25, 958,895.59 and 189,857.10 is: 284,824.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,176.25 : 958,895.59 = 189,857.10 : x
  2. Step 2: Convert to fraction form
    639,176.25/958,895.59 = 189,857.10/x
  3. Step 3: Cross multiply
    639,176.25x = 958,895.59 × 189,857.10
  4. Step 4: Simplify right side
    639,176.25x = 182,053,135,920.19
  5. Step 5: Solve for x
    x = 182,053,135,920.19/639,176.25
  6. Step 6: Final answer
    x = 284,824.63

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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.