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Finding the Fourth Proportional to 328,419.36, 453,218.04 and 177,516

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Solution

The fourth proportional to 328,419.36, 453,218.04 and 177,516 is: 244,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,419.36 : 453,218.04 = 177,516 : x
  2. Step 2: Convert to fraction form
    328,419.36/453,218.04 = 177,516/x
  3. Step 3: Cross multiply
    328,419.36x = 453,218.04 × 177,516
  4. Step 4: Simplify right side
    328,419.36x = 80,453,453,588.64
  5. Step 5: Solve for x
    x = 80,453,453,588.64/328,419.36
  6. Step 6: Final answer
    x = 244,971.71

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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.