Home / 639,019.80-958,665.78-189,741.96

Finding the Fourth Proportional to 639,019.80, 958,665.78 and 189,741.96

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Solution

The fourth proportional to 639,019.80, 958,665.78 and 189,741.96 is: 284,653.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,019.80 : 958,665.78 = 189,741.96 : x
  2. Step 2: Convert to fraction form
    639,019.80/958,665.78 = 189,741.96/x
  3. Step 3: Cross multiply
    639,019.80x = 958,665.78 × 189,741.96
  4. Step 4: Simplify right side
    639,019.80x = 181,899,124,082.13
  5. Step 5: Solve for x
    x = 181,899,124,082.13/639,019.80
  6. Step 6: Final answer
    x = 284,653.35

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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.