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Finding the Fourth Proportional to 397,240.20, 595,860.30 and 237,807.90

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Solution

The fourth proportional to 397,240.20, 595,860.30 and 237,807.90 is: 356,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,240.20 : 595,860.30 = 237,807.90 : x
  2. Step 2: Convert to fraction form
    397,240.20/595,860.30 = 237,807.90/x
  3. Step 3: Cross multiply
    397,240.20x = 595,860.30 × 237,807.90
  4. Step 4: Simplify right side
    397,240.20x = 141,700,286,636.37
  5. Step 5: Solve for x
    x = 141,700,286,636.37/397,240.20
  6. Step 6: Final answer
    x = 356,711.85

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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.