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Finding the Fourth Proportional to 328,792, 453,732.96 and 177,889

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Solution

The fourth proportional to 328,792, 453,732.96 and 177,889 is: 245,486.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,792 : 453,732.96 = 177,889 : x
  2. Step 2: Convert to fraction form
    328,792/453,732.96 = 177,889/x
  3. Step 3: Cross multiply
    328,792x = 453,732.96 × 177,889
  4. Step 4: Simplify right side
    328,792x = 80,714,102,521.44
  5. Step 5: Solve for x
    x = 80,714,102,521.44/328,792
  6. Step 6: Final answer
    x = 245,486.82

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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.