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Finding the Fourth Proportional to 942.93, 1,412.55 and 617.31

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Solution

The fourth proportional to 942.93, 1,412.55 and 617.31 is: 924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.93 : 1,412.55 = 617.31 : x
  2. Step 2: Convert to fraction form
    942.93/1,412.55 = 617.31/x
  3. Step 3: Cross multiply
    942.93x = 1,412.55 × 617.31
  4. Step 4: Simplify right side
    942.93x = 871,972.63
  5. Step 5: Solve for x
    x = 871,972.63/942.93
  6. Step 6: Final answer
    x = 924.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.