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Finding the Fourth Proportional to 1,776.88, 2,666.60 and 1,193.01

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Solution

The fourth proportional to 1,776.88, 2,666.60 and 1,193.01 is: 1,790.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.88 : 2,666.60 = 1,193.01 : x
  2. Step 2: Convert to fraction form
    1,776.88/2,666.60 = 1,193.01/x
  3. Step 3: Cross multiply
    1,776.88x = 2,666.60 × 1,193.01
  4. Step 4: Simplify right side
    1,776.88x = 3,181,280.47
  5. Step 5: Solve for x
    x = 3,181,280.47/1,776.88
  6. Step 6: Final answer
    x = 1,790.37

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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.