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Finding the Fourth Proportional to 613,167.77, 845,294.56 and 431,315.27

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Solution

The fourth proportional to 613,167.77, 845,294.56 and 431,315.27 is: 594,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,167.77 : 845,294.56 = 431,315.27 : x
  2. Step 2: Convert to fraction form
    613,167.77/845,294.56 = 431,315.27/x
  3. Step 3: Cross multiply
    613,167.77x = 845,294.56 × 431,315.27
  4. Step 4: Simplify right side
    613,167.77x = 364,588,451,375.93
  5. Step 5: Solve for x
    x = 364,588,451,375.93/613,167.77
  6. Step 6: Final answer
    x = 594,598.20

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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.