Home / 301,041.30-415,456.20-198,887.56

Finding the Fourth Proportional to 301,041.30, 415,456.20 and 198,887.56

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Solution

The fourth proportional to 301,041.30, 415,456.20 and 198,887.56 is: 274,477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,041.30 : 415,456.20 = 198,887.56 : x
  2. Step 2: Convert to fraction form
    301,041.30/415,456.20 = 198,887.56/x
  3. Step 3: Cross multiply
    301,041.30x = 415,456.20 × 198,887.56
  4. Step 4: Simplify right side
    301,041.30x = 82,629,068,866.23
  5. Step 5: Solve for x
    x = 82,629,068,866.23/301,041.30
  6. Step 6: Final answer
    x = 274,477.52

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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.