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Finding the Fourth Proportional to 961,993, 1,327,546.02 and 553,945.96

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Solution

The fourth proportional to 961,993, 1,327,546.02 and 553,945.96 is: 764,442.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,993 : 1,327,546.02 = 553,945.96 : x
  2. Step 2: Convert to fraction form
    961,993/1,327,546.02 = 553,945.96/x
  3. Step 3: Cross multiply
    961,993x = 1,327,546.02 × 553,945.96
  4. Step 4: Simplify right side
    961,993x = 735,388,754,493.08
  5. Step 5: Solve for x
    x = 735,388,754,493.08/961,993
  6. Step 6: Final answer
    x = 764,442.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.