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Finding the Fourth Proportional to 422,739.69, 583,362.45 and 253,067.37

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Solution

The fourth proportional to 422,739.69, 583,362.45 and 253,067.37 is: 349,222.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,739.69 : 583,362.45 = 253,067.37 : x
  2. Step 2: Convert to fraction form
    422,739.69/583,362.45 = 253,067.37/x
  3. Step 3: Cross multiply
    422,739.69x = 583,362.45 × 253,067.37
  4. Step 4: Simplify right side
    422,739.69x = 147,630,000,978.26
  5. Step 5: Solve for x
    x = 147,630,000,978.26/422,739.69
  6. Step 6: Final answer
    x = 349,222.00

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1.5x scale

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.