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Finding the Fourth Proportional to 1,088.76, 1,634.58 and 846.84

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Solution

The fourth proportional to 1,088.76, 1,634.58 and 846.84 is: 1,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.76 : 1,634.58 = 846.84 : x
  2. Step 2: Convert to fraction form
    1,088.76/1,634.58 = 846.84/x
  3. Step 3: Cross multiply
    1,088.76x = 1,634.58 × 846.84
  4. Step 4: Simplify right side
    1,088.76x = 1,384,227.73
  5. Step 5: Solve for x
    x = 1,384,227.73/1,088.76
  6. Step 6: Final answer
    x = 1,271.38

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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.