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Finding the Fourth Proportional to 502,020.56, 692,796.84 and 275,687.12

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Solution

The fourth proportional to 502,020.56, 692,796.84 and 275,687.12 is: 380,452.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,020.56 : 692,796.84 = 275,687.12 : x
  2. Step 2: Convert to fraction form
    502,020.56/692,796.84 = 275,687.12/x
  3. Step 3: Cross multiply
    502,020.56x = 692,796.84 × 275,687.12
  4. Step 4: Simplify right side
    502,020.56x = 190,995,165,564.70
  5. Step 5: Solve for x
    x = 190,995,165,564.70/502,020.56
  6. Step 6: Final answer
    x = 380,452.88

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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.