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Finding the Fourth Proportional to 655,794.84, 904,983.20 and 365,405.25

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Solution

The fourth proportional to 655,794.84, 904,983.20 and 365,405.25 is: 504,251.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,794.84 : 904,983.20 = 365,405.25 : x
  2. Step 2: Convert to fraction form
    655,794.84/904,983.20 = 365,405.25/x
  3. Step 3: Cross multiply
    655,794.84x = 904,983.20 × 365,405.25
  4. Step 4: Simplify right side
    655,794.84x = 330,685,612,441.80
  5. Step 5: Solve for x
    x = 330,685,612,441.80/655,794.84
  6. Step 6: Final answer
    x = 504,251.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.