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Finding the Fourth Proportional to 328,573.31, 453,431.66 and 177,670.31

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Solution

The fourth proportional to 328,573.31, 453,431.66 and 177,670.31 is: 245,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,573.31 : 453,431.66 = 177,670.31 : x
  2. Step 2: Convert to fraction form
    328,573.31/453,431.66 = 177,670.31/x
  3. Step 3: Cross multiply
    328,573.31x = 453,431.66 × 177,670.31
  4. Step 4: Simplify right side
    328,573.31x = 80,561,340,440.50
  5. Step 5: Solve for x
    x = 80,561,340,440.50/328,573.31
  6. Step 6: Final answer
    x = 245,185.29

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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.