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Finding the Fourth Proportional to 3,526,999.98, 4,867,196.94 and 1,978,265.00

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Solution

The fourth proportional to 3,526,999.98, 4,867,196.94 and 1,978,265.00 is: 2,729,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,526,999.98 : 4,867,196.94 = 1,978,265.00 : x
  2. Step 2: Convert to fraction form
    3,526,999.98/4,867,196.94 = 1,978,265.00/x
  3. Step 3: Cross multiply
    3,526,999.98x = 4,867,196.94 × 1,978,265.00
  4. Step 4: Simplify right side
    3,526,999.98x = 9,628,605,330,173.12
  5. Step 5: Solve for x
    x = 9,628,605,330,173.12/3,526,999.98
  6. Step 6: Final answer
    x = 2,729,970.34

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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.