Home / 389,110.20-536,880.62-236,145

Finding the Fourth Proportional to 389,110.20, 536,880.62 and 236,145

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Solution

The fourth proportional to 389,110.20, 536,880.62 and 236,145 is: 325,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,110.20 : 536,880.62 = 236,145 : x
  2. Step 2: Convert to fraction form
    389,110.20/536,880.62 = 236,145/x
  3. Step 3: Cross multiply
    389,110.20x = 536,880.62 × 236,145
  4. Step 4: Simplify right side
    389,110.20x = 126,781,674,009.90
  5. Step 5: Solve for x
    x = 126,781,674,009.90/389,110.20
  6. Step 6: Final answer
    x = 325,824.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.