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Finding the Fourth Proportional to 1,150.76, 1,594.76 and 1,128.88

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Solution

The fourth proportional to 1,150.76, 1,594.76 and 1,128.88 is: 1,564.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.76 : 1,594.76 = 1,128.88 : x
  2. Step 2: Convert to fraction form
    1,150.76/1,594.76 = 1,128.88/x
  3. Step 3: Cross multiply
    1,150.76x = 1,594.76 × 1,128.88
  4. Step 4: Simplify right side
    1,150.76x = 1,800,292.67
  5. Step 5: Solve for x
    x = 1,800,292.67/1,150.76
  6. Step 6: Final answer
    x = 1,564.44

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.