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Finding the Fourth Proportional to 955,876, 1,318,954.48 and 547,902.72

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Solution

The fourth proportional to 955,876, 1,318,954.48 and 547,902.72 is: 756,017.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,876 : 1,318,954.48 = 547,902.72 : x
  2. Step 2: Convert to fraction form
    955,876/1,318,954.48 = 547,902.72/x
  3. Step 3: Cross multiply
    955,876x = 1,318,954.48 × 547,902.72
  4. Step 4: Simplify right side
    955,876x = 722,658,747,148.19
  5. Step 5: Solve for x
    x = 722,658,747,148.19/955,876
  6. Step 6: Final answer
    x = 756,017.25

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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.