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Finding the Fourth Proportional to 517,692.60, 771,069.51 and 494,658.36

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Solution

The fourth proportional to 517,692.60, 771,069.51 and 494,658.36 is: 736,761.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,692.60 : 771,069.51 = 494,658.36 : x
  2. Step 2: Convert to fraction form
    517,692.60/771,069.51 = 494,658.36/x
  3. Step 3: Cross multiply
    517,692.60x = 771,069.51 × 494,658.36
  4. Step 4: Simplify right side
    517,692.60x = 381,415,979,262.60
  5. Step 5: Solve for x
    x = 381,415,979,262.60/517,692.60
  6. Step 6: Final answer
    x = 736,761.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.