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Finding the Fourth Proportional to 328,448.20, 453,256.98 and 177,543.88

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Solution

The fourth proportional to 328,448.20, 453,256.98 and 177,543.88 is: 245,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,448.20 : 453,256.98 = 177,543.88 : x
  2. Step 2: Convert to fraction form
    328,448.20/453,256.98 = 177,543.88/x
  3. Step 3: Cross multiply
    328,448.20x = 453,256.98 × 177,543.88
  4. Step 4: Simplify right side
    328,448.20x = 80,473,002,866.28
  5. Step 5: Solve for x
    x = 80,473,002,866.28/328,448.20
  6. Step 6: Final answer
    x = 245,009.72

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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.