Home / 639,223.35-958,669.17-189,838.59

Finding the Fourth Proportional to 639,223.35, 958,669.17 and 189,838.59

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Solution

The fourth proportional to 639,223.35, 958,669.17 and 189,838.59 is: 284,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,223.35 : 958,669.17 = 189,838.59 : x
  2. Step 2: Convert to fraction form
    639,223.35/958,669.17 = 189,838.59/x
  3. Step 3: Cross multiply
    639,223.35x = 958,669.17 × 189,838.59
  4. Step 4: Simplify right side
    639,223.35x = 181,992,403,509.27
  5. Step 5: Solve for x
    x = 181,992,403,509.27/639,223.35
  6. Step 6: Final answer
    x = 284,708.63

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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.