Home / 389,109.70-536,880.02-236,144.32

Finding the Fourth Proportional to 389,109.70, 536,880.02 and 236,144.32

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Solution

The fourth proportional to 389,109.70, 536,880.02 and 236,144.32 is: 325,823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,109.70 : 536,880.02 = 236,144.32 : x
  2. Step 2: Convert to fraction form
    389,109.70/536,880.02 = 236,144.32/x
  3. Step 3: Cross multiply
    389,109.70x = 536,880.02 × 236,144.32
  4. Step 4: Simplify right side
    389,109.70x = 126,781,167,244.49
  5. Step 5: Solve for x
    x = 126,781,167,244.49/389,109.70
  6. Step 6: Final answer
    x = 325,823.71

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1.5x scale

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.