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Finding the Fourth Proportional to 1,166,958.72, 1,747,616.40 and 965,798.40

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Solution

The fourth proportional to 1,166,958.72, 1,747,616.40 and 965,798.40 is: 1,446,362.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,958.72 : 1,747,616.40 = 965,798.40 : x
  2. Step 2: Convert to fraction form
    1,166,958.72/1,747,616.40 = 965,798.40/x
  3. Step 3: Cross multiply
    1,166,958.72x = 1,747,616.40 × 965,798.40
  4. Step 4: Simplify right side
    1,166,958.72x = 1,687,845,122,933.76
  5. Step 5: Solve for x
    x = 1,687,845,122,933.76/1,166,958.72
  6. Step 6: Final answer
    x = 1,446,362.32

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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.