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Finding the Fourth Proportional to 374,979.80, 561,303.30 and 270,003.80

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Solution

The fourth proportional to 374,979.80, 561,303.30 and 270,003.80 is: 404,165.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,979.80 : 561,303.30 = 270,003.80 : x
  2. Step 2: Convert to fraction form
    374,979.80/561,303.30 = 270,003.80/x
  3. Step 3: Cross multiply
    374,979.80x = 561,303.30 × 270,003.80
  4. Step 4: Simplify right side
    374,979.80x = 151,554,023,952.54
  5. Step 5: Solve for x
    x = 151,554,023,952.54/374,979.80
  6. Step 6: Final answer
    x = 404,165.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.