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Finding the Fourth Proportional to 486,067.80, 729,101.70 and 367,969.80

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Solution

The fourth proportional to 486,067.80, 729,101.70 and 367,969.80 is: 551,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,067.80 : 729,101.70 = 367,969.80 : x
  2. Step 2: Convert to fraction form
    486,067.80/729,101.70 = 367,969.80/x
  3. Step 3: Cross multiply
    486,067.80x = 729,101.70 × 367,969.80
  4. Step 4: Simplify right side
    486,067.80x = 268,287,406,728.66
  5. Step 5: Solve for x
    x = 268,287,406,728.66/486,067.80
  6. Step 6: Final answer
    x = 551,954.70

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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.