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Finding the Fourth Proportional to 573,149.67, 790,744.93 and 343,781.21

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Solution

The fourth proportional to 573,149.67, 790,744.93 and 343,781.21 is: 474,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,149.67 : 790,744.93 = 343,781.21 : x
  2. Step 2: Convert to fraction form
    573,149.67/790,744.93 = 343,781.21/x
  3. Step 3: Cross multiply
    573,149.67x = 790,744.93 × 343,781.21
  4. Step 4: Simplify right side
    573,149.67x = 271,843,251,887.94
  5. Step 5: Solve for x
    x = 271,843,251,887.94/573,149.67
  6. Step 6: Final answer
    x = 474,297.14

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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.