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Finding the Fourth Proportional to 468,520.18, 646,556.90 and 253,660.38

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Solution

The fourth proportional to 468,520.18, 646,556.90 and 253,660.38 is: 350,050.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,520.18 : 646,556.90 = 253,660.38 : x
  2. Step 2: Convert to fraction form
    468,520.18/646,556.90 = 253,660.38/x
  3. Step 3: Cross multiply
    468,520.18x = 646,556.90 × 253,660.38
  4. Step 4: Simplify right side
    468,520.18x = 164,005,868,945.62
  5. Step 5: Solve for x
    x = 164,005,868,945.62/468,520.18
  6. Step 6: Final answer
    x = 350,050.81

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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.