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Finding the Fourth Proportional to 393,414.39, 587,881.89 and 295,401.96

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Solution

The fourth proportional to 393,414.39, 587,881.89 and 295,401.96 is: 441,421.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,414.39 : 587,881.89 = 295,401.96 : x
  2. Step 2: Convert to fraction form
    393,414.39/587,881.89 = 295,401.96/x
  3. Step 3: Cross multiply
    393,414.39x = 587,881.89 × 295,401.96
  4. Step 4: Simplify right side
    393,414.39x = 173,661,462,554.50
  5. Step 5: Solve for x
    x = 173,661,462,554.50/393,414.39
  6. Step 6: Final answer
    x = 441,421.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.