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Finding the Fourth Proportional to 1,043.98, 1,566.32 and 676.11

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Solution

The fourth proportional to 1,043.98, 1,566.32 and 676.11 is: 1,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.98 : 1,566.32 = 676.11 : x
  2. Step 2: Convert to fraction form
    1,043.98/1,566.32 = 676.11/x
  3. Step 3: Cross multiply
    1,043.98x = 1,566.32 × 676.11
  4. Step 4: Simplify right side
    1,043.98x = 1,059,004.62
  5. Step 5: Solve for x
    x = 1,059,004.62/1,043.98
  6. Step 6: Final answer
    x = 1,014.39

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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.