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Finding the Fourth Proportional to 328,419.91, 453,219.22 and 177,516.91

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Solution

The fourth proportional to 328,419.91, 453,219.22 and 177,516.91 is: 244,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,419.91 : 453,219.22 = 177,516.91 : x
  2. Step 2: Convert to fraction form
    328,419.91/453,219.22 = 177,516.91/x
  3. Step 3: Cross multiply
    328,419.91x = 453,219.22 × 177,516.91
  4. Step 4: Simplify right side
    328,419.91x = 80,454,073,910.17
  5. Step 5: Solve for x
    x = 80,454,073,910.17/328,419.91
  6. Step 6: Final answer
    x = 244,973.19

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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.