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Finding the Fourth Proportional to 360.08, 497 and 222

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Solution

The fourth proportional to 360.08, 497 and 222 is: 306.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.08 : 497 = 222 : x
  2. Step 2: Convert to fraction form
    360.08/497 = 222/x
  3. Step 3: Cross multiply
    360.08x = 497 × 222
  4. Step 4: Simplify right side
    360.08x = 110,334
  5. Step 5: Solve for x
    x = 110,334/360.08
  6. Step 6: Final answer
    x = 306.42

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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.