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Finding the Fourth Proportional to 496,743.22, 745,168.16 and 212,463.29

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Solution

The fourth proportional to 496,743.22, 745,168.16 and 212,463.29 is: 318,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,743.22 : 745,168.16 = 212,463.29 : x
  2. Step 2: Convert to fraction form
    496,743.22/745,168.16 = 212,463.29/x
  3. Step 3: Cross multiply
    496,743.22x = 745,168.16 × 212,463.29
  4. Step 4: Simplify right side
    496,743.22x = 158,320,878,876.85
  5. Step 5: Solve for x
    x = 158,320,878,876.85/496,743.22
  6. Step 6: Final answer
    x = 318,717.74

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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.