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Finding the Fourth Proportional to 345,798.30, 477,242.67 and 192,861.42

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Solution

The fourth proportional to 345,798.30, 477,242.67 and 192,861.42 is: 266,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,798.30 : 477,242.67 = 192,861.42 : x
  2. Step 2: Convert to fraction form
    345,798.30/477,242.67 = 192,861.42/x
  3. Step 3: Cross multiply
    345,798.30x = 477,242.67 × 192,861.42
  4. Step 4: Simplify right side
    345,798.30x = 92,041,699,020.79
  5. Step 5: Solve for x
    x = 92,041,699,020.79/345,798.30
  6. Step 6: Final answer
    x = 266,171.64

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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.