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Finding the Fourth Proportional to 1,876.11, 2,813.14 and 577.41

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Solution

The fourth proportional to 1,876.11, 2,813.14 and 577.41 is: 865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.11 : 2,813.14 = 577.41 : x
  2. Step 2: Convert to fraction form
    1,876.11/2,813.14 = 577.41/x
  3. Step 3: Cross multiply
    1,876.11x = 2,813.14 × 577.41
  4. Step 4: Simplify right side
    1,876.11x = 1,624,335.17
  5. Step 5: Solve for x
    x = 1,624,335.17/1,876.11
  6. Step 6: Final answer
    x = 865.80

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Why These Related Problems?

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