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Finding the Fourth Proportional to 625,183.97, 937,677.77 and 198,663.64

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Solution

The fourth proportional to 625,183.97, 937,677.77 and 198,663.64 is: 297,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,183.97 : 937,677.77 = 198,663.64 : x
  2. Step 2: Convert to fraction form
    625,183.97/937,677.77 = 198,663.64/x
  3. Step 3: Cross multiply
    625,183.97x = 937,677.77 × 198,663.64
  4. Step 4: Simplify right side
    625,183.97x = 186,282,476,342.76
  5. Step 5: Solve for x
    x = 186,282,476,342.76/625,183.97
  6. Step 6: Final answer
    x = 297,964.26

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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.