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Finding the Fourth Proportional to 342,676.62, 473,108.40 and 220,218.66

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Solution

The fourth proportional to 342,676.62, 473,108.40 and 220,218.66 is: 304,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,676.62 : 473,108.40 = 220,218.66 : x
  2. Step 2: Convert to fraction form
    342,676.62/473,108.40 = 220,218.66/x
  3. Step 3: Cross multiply
    342,676.62x = 473,108.40 × 220,218.66
  4. Step 4: Simplify right side
    342,676.62x = 104,187,297,882.74
  5. Step 5: Solve for x
    x = 104,187,297,882.74/342,676.62
  6. Step 6: Final answer
    x = 304,039.70

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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.