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Finding the Fourth Proportional to 328,486.50, 453,312.45 and 177,584.58

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Solution

The fourth proportional to 328,486.50, 453,312.45 and 177,584.58 is: 245,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,486.50 : 453,312.45 = 177,584.58 : x
  2. Step 2: Convert to fraction form
    328,486.50/453,312.45 = 177,584.58/x
  3. Step 3: Cross multiply
    328,486.50x = 453,312.45 × 177,584.58
  4. Step 4: Simplify right side
    328,486.50x = 80,501,301,042.02
  5. Step 5: Solve for x
    x = 80,501,301,042.02/328,486.50
  6. Step 6: Final answer
    x = 245,067.30

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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.