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Finding the Fourth Proportional to 421,391.26, 632,004.42 and 350,767.56

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Solution

The fourth proportional to 421,391.26, 632,004.42 and 350,767.56 is: 526,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,391.26 : 632,004.42 = 350,767.56 : x
  2. Step 2: Convert to fraction form
    421,391.26/632,004.42 = 350,767.56/x
  3. Step 3: Cross multiply
    421,391.26x = 632,004.42 × 350,767.56
  4. Step 4: Simplify right side
    421,391.26x = 221,686,651,998.01
  5. Step 5: Solve for x
    x = 221,686,651,998.01/421,391.26
  6. Step 6: Final answer
    x = 526,082.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.