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Finding the Fourth Proportional to 5,702,991.04, 7,868,902.44 and 3,380,615.20

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Solution

The fourth proportional to 5,702,991.04, 7,868,902.44 and 3,380,615.20 is: 4,664,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,702,991.04 : 7,868,902.44 = 3,380,615.20 : x
  2. Step 2: Convert to fraction form
    5,702,991.04/7,868,902.44 = 3,380,615.20/x
  3. Step 3: Cross multiply
    5,702,991.04x = 7,868,902.44 × 3,380,615.20
  4. Step 4: Simplify right side
    5,702,991.04x = 26,601,731,195,981.09
  5. Step 5: Solve for x
    x = 26,601,731,195,981.09/5,702,991.04
  6. Step 6: Final answer
    x = 4,664,522.71

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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.