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Finding the Fourth Proportional to 368,467.20, 552,700.80 and 329,068.80

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Solution

The fourth proportional to 368,467.20, 552,700.80 and 329,068.80 is: 493,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,467.20 : 552,700.80 = 329,068.80 : x
  2. Step 2: Convert to fraction form
    368,467.20/552,700.80 = 329,068.80/x
  3. Step 3: Cross multiply
    368,467.20x = 552,700.80 × 329,068.80
  4. Step 4: Simplify right side
    368,467.20x = 181,876,589,015.04
  5. Step 5: Solve for x
    x = 181,876,589,015.04/368,467.20
  6. Step 6: Final answer
    x = 493,603.20

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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.