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Finding the Fourth Proportional to 308,399.40, 461,907.90 and 183,983.40

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Solution

The fourth proportional to 308,399.40, 461,907.90 and 183,983.40 is: 275,562.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,399.40 : 461,907.90 = 183,983.40 : x
  2. Step 2: Convert to fraction form
    308,399.40/461,907.90 = 183,983.40/x
  3. Step 3: Cross multiply
    308,399.40x = 461,907.90 × 183,983.40
  4. Step 4: Simplify right side
    308,399.40x = 84,983,385,928.86
  5. Step 5: Solve for x
    x = 84,983,385,928.86/308,399.40
  6. Step 6: Final answer
    x = 275,562.75

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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.