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Finding the Fourth Proportional to 692.32, 955.08 and 483

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Solution

The fourth proportional to 692.32, 955.08 and 483 is: 666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.32 : 955.08 = 483 : x
  2. Step 2: Convert to fraction form
    692.32/955.08 = 483/x
  3. Step 3: Cross multiply
    692.32x = 955.08 × 483
  4. Step 4: Simplify right side
    692.32x = 461,303.64
  5. Step 5: Solve for x
    x = 461,303.64/692.32
  6. Step 6: Final answer
    x = 666.32

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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.