Home / 389,105.70-536,874.51-236,140.32

Finding the Fourth Proportional to 389,105.70, 536,874.51 and 236,140.32

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Solution

The fourth proportional to 389,105.70, 536,874.51 and 236,140.32 is: 325,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,105.70 : 536,874.51 = 236,140.32 : x
  2. Step 2: Convert to fraction form
    389,105.70/536,874.51 = 236,140.32/x
  3. Step 3: Cross multiply
    389,105.70x = 536,874.51 × 236,140.32
  4. Step 4: Simplify right side
    389,105.70x = 126,777,718,591.24
  5. Step 5: Solve for x
    x = 126,777,718,591.24/389,105.70
  6. Step 6: Final answer
    x = 325,818.20

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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.