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Finding the Fourth Proportional to 521,234.26, 719,297.78 and 291,793.43

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Solution

The fourth proportional to 521,234.26, 719,297.78 and 291,793.43 is: 402,671.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,234.26 : 719,297.78 = 291,793.43 : x
  2. Step 2: Convert to fraction form
    521,234.26/719,297.78 = 291,793.43/x
  3. Step 3: Cross multiply
    521,234.26x = 719,297.78 × 291,793.43
  4. Step 4: Simplify right side
    521,234.26x = 209,886,366,756.86
  5. Step 5: Solve for x
    x = 209,886,366,756.86/521,234.26
  6. Step 6: Final answer
    x = 402,671.86

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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.