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Finding the Fourth Proportional to 303,685.20, 454,871.70 and 251,197.20

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Solution

The fourth proportional to 303,685.20, 454,871.70 and 251,197.20 is: 376,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,685.20 : 454,871.70 = 251,197.20 : x
  2. Step 2: Convert to fraction form
    303,685.20/454,871.70 = 251,197.20/x
  3. Step 3: Cross multiply
    303,685.20x = 454,871.70 × 251,197.20
  4. Step 4: Simplify right side
    303,685.20x = 114,262,497,399.24
  5. Step 5: Solve for x
    x = 114,262,497,399.24/303,685.20
  6. Step 6: Final answer
    x = 376,253.10

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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.