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Finding the Fourth Proportional to 363,605.26, 545,225.41 and 211,851.38

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Solution

The fourth proportional to 363,605.26, 545,225.41 and 211,851.38 is: 317,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,605.26 : 545,225.41 = 211,851.38 : x
  2. Step 2: Convert to fraction form
    363,605.26/545,225.41 = 211,851.38/x
  3. Step 3: Cross multiply
    363,605.26x = 545,225.41 × 211,851.38
  4. Step 4: Simplify right side
    363,605.26x = 115,506,755,519.57
  5. Step 5: Solve for x
    x = 115,506,755,519.57/363,605.26
  6. Step 6: Final answer
    x = 317,670.75

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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.