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Finding the Fourth Proportional to 492,768.80, 680,021.70 and 266,414.30

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Solution

The fourth proportional to 492,768.80, 680,021.70 and 266,414.30 is: 367,652.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,768.80 : 680,021.70 = 266,414.30 : x
  2. Step 2: Convert to fraction form
    492,768.80/680,021.70 = 266,414.30/x
  3. Step 3: Cross multiply
    492,768.80x = 680,021.70 × 266,414.30
  4. Step 4: Simplify right side
    492,768.80x = 181,167,505,190.31
  5. Step 5: Solve for x
    x = 181,167,505,190.31/492,768.80
  6. Step 6: Final answer
    x = 367,652.14

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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.