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Finding the Fourth Proportional to 436,609.28, 654,993.12 and 180,442.28

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Solution

The fourth proportional to 436,609.28, 654,993.12 and 180,442.28 is: 270,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,609.28 : 654,993.12 = 180,442.28 : x
  2. Step 2: Convert to fraction form
    436,609.28/654,993.12 = 180,442.28/x
  3. Step 3: Cross multiply
    436,609.28x = 654,993.12 × 180,442.28
  4. Step 4: Simplify right side
    436,609.28x = 118,188,451,957.11
  5. Step 5: Solve for x
    x = 118,188,451,957.11/436,609.28
  6. Step 6: Final answer
    x = 270,696.15

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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.