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Finding the Fourth Proportional to 368,319.98, 552,479.98 and 243,631.82

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Solution

The fourth proportional to 368,319.98, 552,479.98 and 243,631.82 is: 365,447.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,319.98 : 552,479.98 = 243,631.82 : x
  2. Step 2: Convert to fraction form
    368,319.98/552,479.98 = 243,631.82/x
  3. Step 3: Cross multiply
    368,319.98x = 552,479.98 × 243,631.82
  4. Step 4: Simplify right side
    368,319.98x = 134,601,703,040.96
  5. Step 5: Solve for x
    x = 134,601,703,040.96/368,319.98
  6. Step 6: Final answer
    x = 365,447.74

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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.