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Finding the Fourth Proportional to 656,414.03, 905,861.10 and 366,017.03

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Solution

The fourth proportional to 656,414.03, 905,861.10 and 366,017.03 is: 505,108.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,414.03 : 905,861.10 = 366,017.03 : x
  2. Step 2: Convert to fraction form
    656,414.03/905,861.10 = 366,017.03/x
  3. Step 3: Cross multiply
    656,414.03x = 905,861.10 × 366,017.03
  4. Step 4: Simplify right side
    656,414.03x = 331,560,586,566.50
  5. Step 5: Solve for x
    x = 331,560,586,566.50/656,414.03
  6. Step 6: Final answer
    x = 505,108.93

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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.