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Finding the Fourth Proportional to 552,436.86, 762,370.74 and 326,082.36

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Solution

The fourth proportional to 552,436.86, 762,370.74 and 326,082.36 is: 449,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,436.86 : 762,370.74 = 326,082.36 : x
  2. Step 2: Convert to fraction form
    552,436.86/762,370.74 = 326,082.36/x
  3. Step 3: Cross multiply
    552,436.86x = 762,370.74 × 326,082.36
  4. Step 4: Simplify right side
    552,436.86x = 248,595,650,094.15
  5. Step 5: Solve for x
    x = 248,595,650,094.15/552,436.86
  6. Step 6: Final answer
    x = 449,998.30

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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.