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Finding the Fourth Proportional to 6,399,689.49, 8,831,572.25 and 3,499,082.33

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Solution

The fourth proportional to 6,399,689.49, 8,831,572.25 and 3,499,082.33 is: 4,828,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399,689.49 : 8,831,572.25 = 3,499,082.33 : x
  2. Step 2: Convert to fraction form
    6,399,689.49/8,831,572.25 = 3,499,082.33/x
  3. Step 3: Cross multiply
    6,399,689.49x = 8,831,572.25 × 3,499,082.33
  4. Step 4: Simplify right side
    6,399,689.49x = 30,902,398,344,440.07
  5. Step 5: Solve for x
    x = 30,902,398,344,440.07/6,399,689.49
  6. Step 6: Final answer
    x = 4,828,734.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.