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Finding the Fourth Proportional to 692.24, 955.64 and 526.48

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Solution

The fourth proportional to 692.24, 955.64 and 526.48 is: 726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.24 : 955.64 = 526.48 : x
  2. Step 2: Convert to fraction form
    692.24/955.64 = 526.48/x
  3. Step 3: Cross multiply
    692.24x = 955.64 × 526.48
  4. Step 4: Simplify right side
    692.24x = 503,125.35
  5. Step 5: Solve for x
    x = 503,125.35/692.24
  6. Step 6: Final answer
    x = 726.81

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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.