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Finding the Fourth Proportional to 622.09, 858.48 and 360.10

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Solution

The fourth proportional to 622.09, 858.48 and 360.10 is: 496.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.09 : 858.48 = 360.10 : x
  2. Step 2: Convert to fraction form
    622.09/858.48 = 360.10/x
  3. Step 3: Cross multiply
    622.09x = 858.48 × 360.10
  4. Step 4: Simplify right side
    622.09x = 309,138.65
  5. Step 5: Solve for x
    x = 309,138.65/622.09
  6. Step 6: Final answer
    x = 496.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.