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Finding the Fourth Proportional to 328,142.63, 452,837.13 and 177,239.63

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Solution

The fourth proportional to 328,142.63, 452,837.13 and 177,239.63 is: 244,590.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,142.63 : 452,837.13 = 177,239.63 : x
  2. Step 2: Convert to fraction form
    328,142.63/452,837.13 = 177,239.63/x
  3. Step 3: Cross multiply
    328,142.63x = 452,837.13 × 177,239.63
  4. Step 4: Simplify right side
    328,142.63x = 80,260,683,107.28
  5. Step 5: Solve for x
    x = 80,260,683,107.28/328,142.63
  6. Step 6: Final answer
    x = 244,590.85

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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.