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Finding the Fourth Proportional to 347,233.80, 520,850.70 and 189,769.80

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Solution

The fourth proportional to 347,233.80, 520,850.70 and 189,769.80 is: 284,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,233.80 : 520,850.70 = 189,769.80 : x
  2. Step 2: Convert to fraction form
    347,233.80/520,850.70 = 189,769.80/x
  3. Step 3: Cross multiply
    347,233.80x = 520,850.70 × 189,769.80
  4. Step 4: Simplify right side
    347,233.80x = 98,841,733,168.86
  5. Step 5: Solve for x
    x = 98,841,733,168.86/347,233.80
  6. Step 6: Final answer
    x = 284,654.70

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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.