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Finding the Fourth Proportional to 574,755.48, 793,187.02 and 320,106.66

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Solution

The fourth proportional to 574,755.48, 793,187.02 and 320,106.66 is: 441,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,755.48 : 793,187.02 = 320,106.66 : x
  2. Step 2: Convert to fraction form
    574,755.48/793,187.02 = 320,106.66/x
  3. Step 3: Cross multiply
    574,755.48x = 793,187.02 × 320,106.66
  4. Step 4: Simplify right side
    574,755.48x = 253,904,447,727.55
  5. Step 5: Solve for x
    x = 253,904,447,727.55/574,755.48
  6. Step 6: Final answer
    x = 441,760.81

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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.