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Finding the Fourth Proportional to 422,520.84, 633,354.79 and 264,860.01

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Solution

The fourth proportional to 422,520.84, 633,354.79 and 264,860.01 is: 397,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,520.84 : 633,354.79 = 264,860.01 : x
  2. Step 2: Convert to fraction form
    422,520.84/633,354.79 = 264,860.01/x
  3. Step 3: Cross multiply
    422,520.84x = 633,354.79 × 264,860.01
  4. Step 4: Simplify right side
    422,520.84x = 167,750,356,012.95
  5. Step 5: Solve for x
    x = 167,750,356,012.95/422,520.84
  6. Step 6: Final answer
    x = 397,022.68

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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.