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Finding the Fourth Proportional to 633,894.81, 874,773.11 and 343,514.43

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Solution

The fourth proportional to 633,894.81, 874,773.11 and 343,514.43 is: 474,048.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,894.81 : 874,773.11 = 343,514.43 : x
  2. Step 2: Convert to fraction form
    633,894.81/874,773.11 = 343,514.43/x
  3. Step 3: Cross multiply
    633,894.81x = 874,773.11 × 343,514.43
  4. Step 4: Simplify right side
    633,894.81x = 300,497,184,543.41
  5. Step 5: Solve for x
    x = 300,497,184,543.41/633,894.81
  6. Step 6: Final answer
    x = 474,048.97

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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.