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Finding the Fourth Proportional to 612.60, 845.84 and 416.04

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Solution

The fourth proportional to 612.60, 845.84 and 416.04 is: 574.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.60 : 845.84 = 416.04 : x
  2. Step 2: Convert to fraction form
    612.60/845.84 = 416.04/x
  3. Step 3: Cross multiply
    612.60x = 845.84 × 416.04
  4. Step 4: Simplify right side
    612.60x = 351,903.27
  5. Step 5: Solve for x
    x = 351,903.27/612.60
  6. Step 6: Final answer
    x = 574.44

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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.