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Finding the Fourth Proportional to 1,546.90, 2,320.61 and 766.94

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Solution

The fourth proportional to 1,546.90, 2,320.61 and 766.94 is: 1,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,546.90 : 2,320.61 = 766.94 : x
  2. Step 2: Convert to fraction form
    1,546.90/2,320.61 = 766.94/x
  3. Step 3: Cross multiply
    1,546.90x = 2,320.61 × 766.94
  4. Step 4: Simplify right side
    1,546.90x = 1,779,768.63
  5. Step 5: Solve for x
    x = 1,779,768.63/1,546.90
  6. Step 6: Final answer
    x = 1,150.54

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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.