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Finding the Fourth Proportional to 473,221.11, 653,046.62 and 303,455.91

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Solution

The fourth proportional to 473,221.11, 653,046.62 and 303,455.91 is: 418,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,221.11 : 653,046.62 = 303,455.91 : x
  2. Step 2: Convert to fraction form
    473,221.11/653,046.62 = 303,455.91/x
  3. Step 3: Cross multiply
    473,221.11x = 653,046.62 × 303,455.91
  4. Step 4: Simplify right side
    473,221.11x = 198,170,854,827.25
  5. Step 5: Solve for x
    x = 198,170,854,827.25/473,221.11
  6. Step 6: Final answer
    x = 418,770.11

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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.