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Finding the Fourth Proportional to 3,261,687.88, 4,890,372.31 and 1,556,094.42

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Solution

The fourth proportional to 3,261,687.88, 4,890,372.31 and 1,556,094.42 is: 2,333,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261,687.88 : 4,890,372.31 = 1,556,094.42 : x
  2. Step 2: Convert to fraction form
    3,261,687.88/4,890,372.31 = 1,556,094.42/x
  3. Step 3: Cross multiply
    3,261,687.88x = 4,890,372.31 × 1,556,094.42
  4. Step 4: Simplify right side
    3,261,687.88x = 7,609,881,059,423.28
  5. Step 5: Solve for x
    x = 7,609,881,059,423.28/3,261,687.88
  6. Step 6: Final answer
    x = 2,333,111.37

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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.