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Finding the Fourth Proportional to 633,874.43, 874,741.68 and 347,393.83

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Solution

The fourth proportional to 633,874.43, 874,741.68 and 347,393.83 is: 479,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,874.43 : 874,741.68 = 347,393.83 : x
  2. Step 2: Convert to fraction form
    633,874.43/874,741.68 = 347,393.83/x
  3. Step 3: Cross multiply
    633,874.43x = 874,741.68 × 347,393.83
  4. Step 4: Simplify right side
    633,874.43x = 303,879,862,475.83
  5. Step 5: Solve for x
    x = 303,879,862,475.83/633,874.43
  6. Step 6: Final answer
    x = 479,400.73

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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.