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Finding the Fourth Proportional to 444,599.11, 613,379.29 and 291,721.69

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Solution

The fourth proportional to 444,599.11, 613,379.29 and 291,721.69 is: 402,466.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,599.11 : 613,379.29 = 291,721.69 : x
  2. Step 2: Convert to fraction form
    444,599.11/613,379.29 = 291,721.69/x
  3. Step 3: Cross multiply
    444,599.11x = 613,379.29 × 291,721.69
  4. Step 4: Simplify right side
    444,599.11x = 178,936,038,564.30
  5. Step 5: Solve for x
    x = 178,936,038,564.30/444,599.11
  6. Step 6: Final answer
    x = 402,466.03

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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.