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Finding the Fourth Proportional to 368,321.98, 552,482.98 and 243,633.82

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Solution

The fourth proportional to 368,321.98, 552,482.98 and 243,633.82 is: 365,450.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,321.98 : 552,482.98 = 243,633.82 : x
  2. Step 2: Convert to fraction form
    368,321.98/552,482.98 = 243,633.82/x
  3. Step 3: Cross multiply
    368,321.98x = 552,482.98 × 243,633.82
  4. Step 4: Simplify right side
    368,321.98x = 134,603,538,902.38
  5. Step 5: Solve for x
    x = 134,603,538,902.38/368,321.98
  6. Step 6: Final answer
    x = 365,450.74

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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.