Home / 638,651.36-958,161.95-189,383.04

Finding the Fourth Proportional to 638,651.36, 958,161.95 and 189,383.04

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Solution

The fourth proportional to 638,651.36, 958,161.95 and 189,383.04 is: 284,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,651.36 : 958,161.95 = 189,383.04 : x
  2. Step 2: Convert to fraction form
    638,651.36/958,161.95 = 189,383.04/x
  3. Step 3: Cross multiply
    638,651.36x = 958,161.95 × 189,383.04
  4. Step 4: Simplify right side
    638,651.36x = 181,459,623,376.79
  5. Step 5: Solve for x
    x = 181,459,623,376.79/638,651.36
  6. Step 6: Final answer
    x = 284,129.39

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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.