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Finding the Fourth Proportional to 298,344,358.61, 411,719,480.33 and 171,205,755.63

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Solution

The fourth proportional to 298,344,358.61, 411,719,480.33 and 171,205,755.63 is: 236,266,390.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,344,358.61 : 411,719,480.33 = 171,205,755.63 : x
  2. Step 2: Convert to fraction form
    298,344,358.61/411,719,480.33 = 171,205,755.63/x
  3. Step 3: Cross multiply
    298,344,358.61x = 411,719,480.33 × 171,205,755.63
  4. Step 4: Simplify right side
    298,344,358.61x = 70,488,744,737,488,568
  5. Step 5: Solve for x
    x = 70,488,744,737,488,568/298,344,358.61
  6. Step 6: Final answer
    x = 236,266,390.51

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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.