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Finding the Fourth Proportional to 361,698, 499,149.32 and 200,559.76

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Solution

The fourth proportional to 361,698, 499,149.32 and 200,559.76 is: 276,775.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,698 : 499,149.32 = 200,559.76 : x
  2. Step 2: Convert to fraction form
    361,698/499,149.32 = 200,559.76/x
  3. Step 3: Cross multiply
    361,698x = 499,149.32 × 200,559.76
  4. Step 4: Simplify right side
    361,698x = 100,109,267,823.36
  5. Step 5: Solve for x
    x = 100,109,267,823.36/361,698
  6. Step 6: Final answer
    x = 276,775.84

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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.