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Finding the Fourth Proportional to 692.96, 955.75 and 483.06

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Solution

The fourth proportional to 692.96, 955.75 and 483.06 is: 666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.96 : 955.75 = 483.06 : x
  2. Step 2: Convert to fraction form
    692.96/955.75 = 483.06/x
  3. Step 3: Cross multiply
    692.96x = 955.75 × 483.06
  4. Step 4: Simplify right side
    692.96x = 461,687.88
  5. Step 5: Solve for x
    x = 461,687.88/692.96
  6. Step 6: Final answer
    x = 666.26

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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.