Home / 328,517.28-453,354.90-177,615.36

Finding the Fourth Proportional to 328,517.28, 453,354.90 and 177,615.36

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Solution

The fourth proportional to 328,517.28, 453,354.90 and 177,615.36 is: 245,109.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,517.28 : 453,354.90 = 177,615.36 : x
  2. Step 2: Convert to fraction form
    328,517.28/453,354.90 = 177,615.36/x
  3. Step 3: Cross multiply
    328,517.28x = 453,354.90 × 177,615.36
  4. Step 4: Simplify right side
    328,517.28x = 80,522,793,771.26
  5. Step 5: Solve for x
    x = 80,522,793,771.26/328,517.28
  6. Step 6: Final answer
    x = 245,109.77

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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.