Home / 527,965.37-728,606.55-298,556.97

Finding the Fourth Proportional to 527,965.37, 728,606.55 and 298,556.97

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Solution

The fourth proportional to 527,965.37, 728,606.55 and 298,556.97 is: 412,016.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,965.37 : 728,606.55 = 298,556.97 : x
  2. Step 2: Convert to fraction form
    527,965.37/728,606.55 = 298,556.97/x
  3. Step 3: Cross multiply
    527,965.37x = 728,606.55 × 298,556.97
  4. Step 4: Simplify right side
    527,965.37x = 217,530,563,890.15
  5. Step 5: Solve for x
    x = 217,530,563,890.15/527,965.37
  6. Step 6: Final answer
    x = 412,016.73

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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.