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Finding the Fourth Proportional to 393,977.10, 590,965.65 and 244,677.90

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Solution

The fourth proportional to 393,977.10, 590,965.65 and 244,677.90 is: 367,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,977.10 : 590,965.65 = 244,677.90 : x
  2. Step 2: Convert to fraction form
    393,977.10/590,965.65 = 244,677.90/x
  3. Step 3: Cross multiply
    393,977.10x = 590,965.65 × 244,677.90
  4. Step 4: Simplify right side
    393,977.10x = 144,596,234,214.14
  5. Step 5: Solve for x
    x = 144,596,234,214.14/393,977.10
  6. Step 6: Final answer
    x = 367,016.85

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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.