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Finding the Fourth Proportional to 625,299.16, 937,957.96 and 198,900.79

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Solution

The fourth proportional to 625,299.16, 937,957.96 and 198,900.79 is: 298,354.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,299.16 : 937,957.96 = 198,900.79 : x
  2. Step 2: Convert to fraction form
    625,299.16/937,957.96 = 198,900.79/x
  3. Step 3: Cross multiply
    625,299.16x = 937,957.96 × 198,900.79
  4. Step 4: Simplify right side
    625,299.16x = 186,560,579,230.79
  5. Step 5: Solve for x
    x = 186,560,579,230.79/625,299.16
  6. Step 6: Final answer
    x = 298,354.12

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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.