Home / 455,719.20-683,578.80-140,135.10

Finding the Fourth Proportional to 455,719.20, 683,578.80 and 140,135.10

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Solution

The fourth proportional to 455,719.20, 683,578.80 and 140,135.10 is: 210,202.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,719.20 : 683,578.80 = 140,135.10 : x
  2. Step 2: Convert to fraction form
    455,719.20/683,578.80 = 140,135.10/x
  3. Step 3: Cross multiply
    455,719.20x = 683,578.80 × 140,135.10
  4. Step 4: Simplify right side
    455,719.20x = 95,793,383,495.88
  5. Step 5: Solve for x
    x = 95,793,383,495.88/455,719.20
  6. Step 6: Final answer
    x = 210,202.65

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Similar ratio
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1.5x scale

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.