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Finding the Fourth Proportional to 692.24, 1,036.44 and 529.16

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Solution

The fourth proportional to 692.24, 1,036.44 and 529.16 is: 792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.24 : 1,036.44 = 529.16 : x
  2. Step 2: Convert to fraction form
    692.24/1,036.44 = 529.16/x
  3. Step 3: Cross multiply
    692.24x = 1,036.44 × 529.16
  4. Step 4: Simplify right side
    692.24x = 548,437.41
  5. Step 5: Solve for x
    x = 548,437.41/692.24
  6. Step 6: Final answer
    x = 792.27

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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.