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Finding the Fourth Proportional to 436,892.40, 655,630.20 and 200,113.20

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Solution

The fourth proportional to 436,892.40, 655,630.20 and 200,113.20 is: 300,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,892.40 : 655,630.20 = 200,113.20 : x
  2. Step 2: Convert to fraction form
    436,892.40/655,630.20 = 200,113.20/x
  3. Step 3: Cross multiply
    436,892.40x = 655,630.20 × 200,113.20
  4. Step 4: Simplify right side
    436,892.40x = 131,200,257,338.64
  5. Step 5: Solve for x
    x = 131,200,257,338.64/436,892.40
  6. Step 6: Final answer
    x = 300,303.36

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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.