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Finding the Fourth Proportional to 557,761.57, 769,630.83 and 328,182.37

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Solution

The fourth proportional to 557,761.57, 769,630.83 and 328,182.37 is: 452,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,761.57 : 769,630.83 = 328,182.37 : x
  2. Step 2: Convert to fraction form
    557,761.57/769,630.83 = 328,182.37/x
  3. Step 3: Cross multiply
    557,761.57x = 769,630.83 × 328,182.37
  4. Step 4: Simplify right side
    557,761.57x = 252,579,269,814.47
  5. Step 5: Solve for x
    x = 252,579,269,814.47/557,761.57
  6. Step 6: Final answer
    x = 452,844.52

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1.5x scale

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.