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Finding the Fourth Proportional to 331,858.80, 497,399.40 and 248,655.60

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Solution

The fourth proportional to 331,858.80, 497,399.40 and 248,655.60 is: 372,692.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,858.80 : 497,399.40 = 248,655.60 : x
  2. Step 2: Convert to fraction form
    331,858.80/497,399.40 = 248,655.60/x
  3. Step 3: Cross multiply
    331,858.80x = 497,399.40 × 248,655.60
  4. Step 4: Simplify right side
    331,858.80x = 123,681,146,246.64
  5. Step 5: Solve for x
    x = 123,681,146,246.64/331,858.80
  6. Step 6: Final answer
    x = 372,692.08

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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.