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Finding the Fourth Proportional to 301,986.80, 452,433.45 and 239,219.90

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Solution

The fourth proportional to 301,986.80, 452,433.45 and 239,219.90 is: 358,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,986.80 : 452,433.45 = 239,219.90 : x
  2. Step 2: Convert to fraction form
    301,986.80/452,433.45 = 239,219.90/x
  3. Step 3: Cross multiply
    301,986.80x = 452,433.45 × 239,219.90
  4. Step 4: Simplify right side
    301,986.80x = 108,231,084,665.66
  5. Step 5: Solve for x
    x = 108,231,084,665.66/301,986.80
  6. Step 6: Final answer
    x = 358,396.74

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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.