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Finding the Fourth Proportional to 3,862,658.13, 5,795,020.55 and 1,338,313.38

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Solution

The fourth proportional to 3,862,658.13, 5,795,020.55 and 1,338,313.38 is: 2,007,828.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862,658.13 : 5,795,020.55 = 1,338,313.38 : x
  2. Step 2: Convert to fraction form
    3,862,658.13/5,795,020.55 = 1,338,313.38/x
  3. Step 3: Cross multiply
    3,862,658.13x = 5,795,020.55 × 1,338,313.38
  4. Step 4: Simplify right side
    3,862,658.13x = 7,755,553,539,439.96
  5. Step 5: Solve for x
    x = 7,755,553,539,439.96/3,862,658.13
  6. Step 6: Final answer
    x = 2,007,828.10

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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.