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Finding the Fourth Proportional to 578,632.22, 798,327.93 and 374,839.36

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Solution

The fourth proportional to 578,632.22, 798,327.93 and 374,839.36 is: 517,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,632.22 : 798,327.93 = 374,839.36 : x
  2. Step 2: Convert to fraction form
    578,632.22/798,327.93 = 374,839.36/x
  3. Step 3: Cross multiply
    578,632.22x = 798,327.93 × 374,839.36
  4. Step 4: Simplify right side
    578,632.22x = 299,244,729,761.15
  5. Step 5: Solve for x
    x = 299,244,729,761.15/578,632.22
  6. Step 6: Final answer
    x = 517,158.78

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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.