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Finding the Fourth Proportional to 400,881.92, 600,800.64 and 223,381.76

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Solution

The fourth proportional to 400,881.92, 600,800.64 and 223,381.76 is: 334,781.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,881.92 : 600,800.64 = 223,381.76 : x
  2. Step 2: Convert to fraction form
    400,881.92/600,800.64 = 223,381.76/x
  3. Step 3: Cross multiply
    400,881.92x = 600,800.64 × 223,381.76
  4. Step 4: Simplify right side
    400,881.92x = 134,207,904,372.33
  5. Step 5: Solve for x
    x = 134,207,904,372.33/400,881.92
  6. Step 6: Final answer
    x = 334,781.63

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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.