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Finding the Fourth Proportional to 328,879.47, 453,852 and 177,976.47

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Solution

The fourth proportional to 328,879.47, 453,852 and 177,976.47 is: 245,606.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,879.47 : 453,852 = 177,976.47 : x
  2. Step 2: Convert to fraction form
    328,879.47/453,852 = 177,976.47/x
  3. Step 3: Cross multiply
    328,879.47x = 453,852 × 177,976.47
  4. Step 4: Simplify right side
    328,879.47x = 80,774,976,862.44
  5. Step 5: Solve for x
    x = 80,774,976,862.44/328,879.47
  6. Step 6: Final answer
    x = 245,606.63

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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.