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Finding the Fourth Proportional to 396,622.56, 546,525.36 and 368,621.28

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Solution

The fourth proportional to 396,622.56, 546,525.36 and 368,621.28 is: 507,941.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,622.56 : 546,525.36 = 368,621.28 : x
  2. Step 2: Convert to fraction form
    396,622.56/546,525.36 = 368,621.28/x
  3. Step 3: Cross multiply
    396,622.56x = 546,525.36 × 368,621.28
  4. Step 4: Simplify right side
    396,622.56x = 201,460,877,755.66
  5. Step 5: Solve for x
    x = 201,460,877,755.66/396,622.56
  6. Step 6: Final answer
    x = 507,941.05

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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.