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Finding the Fourth Proportional to 316,362.48, 436,576.96 and 180,418.56

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Solution

The fourth proportional to 316,362.48, 436,576.96 and 180,418.56 is: 248,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,362.48 : 436,576.96 = 180,418.56 : x
  2. Step 2: Convert to fraction form
    316,362.48/436,576.96 = 180,418.56/x
  3. Step 3: Cross multiply
    316,362.48x = 436,576.96 × 180,418.56
  4. Step 4: Simplify right side
    316,362.48x = 78,766,586,452.38
  5. Step 5: Solve for x
    x = 78,766,586,452.38/316,362.48
  6. Step 6: Final answer
    x = 248,975.75

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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.