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Finding the Fourth Proportional to 397,117.80, 595,619.10 and 116,605.80

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Solution

The fourth proportional to 397,117.80, 595,619.10 and 116,605.80 is: 174,891.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,117.80 : 595,619.10 = 116,605.80 : x
  2. Step 2: Convert to fraction form
    397,117.80/595,619.10 = 116,605.80/x
  3. Step 3: Cross multiply
    397,117.80x = 595,619.10 × 116,605.80
  4. Step 4: Simplify right side
    397,117.80x = 69,452,641,650.78
  5. Step 5: Solve for x
    x = 69,452,641,650.78/397,117.80
  6. Step 6: Final answer
    x = 174,891.79

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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.