Home / 280,819.44-387,673.56-190,652.40

Finding the Fourth Proportional to 280,819.44, 387,673.56 and 190,652.40

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Solution

The fourth proportional to 280,819.44, 387,673.56 and 190,652.40 is: 263,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,819.44 : 387,673.56 = 190,652.40 : x
  2. Step 2: Convert to fraction form
    280,819.44/387,673.56 = 190,652.40/x
  3. Step 3: Cross multiply
    280,819.44x = 387,673.56 × 190,652.40
  4. Step 4: Simplify right side
    280,819.44x = 73,910,894,630.54
  5. Step 5: Solve for x
    x = 73,910,894,630.54/280,819.44
  6. Step 6: Final answer
    x = 263,197.22

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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.