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Finding the Fourth Proportional to 2,953.25, 4,429.90 and 762.00

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Solution

The fourth proportional to 2,953.25, 4,429.90 and 762.00 is: 1,143.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.25 : 4,429.90 = 762.00 : x
  2. Step 2: Convert to fraction form
    2,953.25/4,429.90 = 762.00/x
  3. Step 3: Cross multiply
    2,953.25x = 4,429.90 × 762.00
  4. Step 4: Simplify right side
    2,953.25x = 3,375,592.34
  5. Step 5: Solve for x
    x = 3,375,592.34/2,953.25
  6. Step 6: Final answer
    x = 1,143.01

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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.