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Finding the Fourth Proportional to 328,414.10, 453,211.20 and 177,511.10

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Solution

The fourth proportional to 328,414.10, 453,211.20 and 177,511.10 is: 244,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,414.10 : 453,211.20 = 177,511.10 : x
  2. Step 2: Convert to fraction form
    328,414.10/453,211.20 = 177,511.10/x
  3. Step 3: Cross multiply
    328,414.10x = 453,211.20 × 177,511.10
  4. Step 4: Simplify right side
    328,414.10x = 80,450,016,378.26
  5. Step 5: Solve for x
    x = 80,450,016,378.26/328,414.10
  6. Step 6: Final answer
    x = 244,965.18

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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.