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Finding the Fourth Proportional to 1,372,762, 1,893,770.80 and 863,745.04

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Solution

The fourth proportional to 1,372,762, 1,893,770.80 and 863,745.04 is: 1,191,564.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,762 : 1,893,770.80 = 863,745.04 : x
  2. Step 2: Convert to fraction form
    1,372,762/1,893,770.80 = 863,745.04/x
  3. Step 3: Cross multiply
    1,372,762x = 1,893,770.80 × 863,745.04
  4. Step 4: Simplify right side
    1,372,762x = 1,635,735,135,396.83
  5. Step 5: Solve for x
    x = 1,635,735,135,396.83/1,372,762
  6. Step 6: Final answer
    x = 1,191,564.99

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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.