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Finding the Fourth Proportional to 708,359.44, 977,523.24 and 386,067.28

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Solution

The fourth proportional to 708,359.44, 977,523.24 and 386,067.28 is: 532,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,359.44 : 977,523.24 = 386,067.28 : x
  2. Step 2: Convert to fraction form
    708,359.44/977,523.24 = 386,067.28/x
  3. Step 3: Cross multiply
    708,359.44x = 977,523.24 × 386,067.28
  4. Step 4: Simplify right side
    708,359.44x = 377,389,738,403.59
  5. Step 5: Solve for x
    x = 377,389,738,403.59/708,359.44
  6. Step 6: Final answer
    x = 532,765.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.