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Finding the Fourth Proportional to 3,973,197.60, 5,959,796.40 and 981,381.60

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Solution

The fourth proportional to 3,973,197.60, 5,959,796.40 and 981,381.60 is: 1,472,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973,197.60 : 5,959,796.40 = 981,381.60 : x
  2. Step 2: Convert to fraction form
    3,973,197.60/5,959,796.40 = 981,381.60/x
  3. Step 3: Cross multiply
    3,973,197.60x = 5,959,796.40 × 981,381.60
  4. Step 4: Simplify right side
    3,973,197.60x = 5,848,834,526,706.24
  5. Step 5: Solve for x
    x = 5,848,834,526,706.24/3,973,197.60
  6. Step 6: Final answer
    x = 1,472,072.40

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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.