Home / 328,513.28-453,349.38-177,611.36

Finding the Fourth Proportional to 328,513.28, 453,349.38 and 177,611.36

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Solution

The fourth proportional to 328,513.28, 453,349.38 and 177,611.36 is: 245,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,513.28 : 453,349.38 = 177,611.36 : x
  2. Step 2: Convert to fraction form
    328,513.28/453,349.38 = 177,611.36/x
  3. Step 3: Cross multiply
    328,513.28x = 453,349.38 × 177,611.36
  4. Step 4: Simplify right side
    328,513.28x = 80,519,999,936.96
  5. Step 5: Solve for x
    x = 80,519,999,936.96/328,513.28
  6. Step 6: Final answer
    x = 245,104.25

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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.