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Finding the Fourth Proportional to 303,066.45, 418,157.91 and 195,613.47

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Solution

The fourth proportional to 303,066.45, 418,157.91 and 195,613.47 is: 269,898.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,066.45 : 418,157.91 = 195,613.47 : x
  2. Step 2: Convert to fraction form
    303,066.45/418,157.91 = 195,613.47/x
  3. Step 3: Cross multiply
    303,066.45x = 418,157.91 × 195,613.47
  4. Step 4: Simplify right side
    303,066.45x = 81,797,319,783.05
  5. Step 5: Solve for x
    x = 81,797,319,783.05/303,066.45
  6. Step 6: Final answer
    x = 269,898.96

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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.