Home / 527,151.24-727,439.22-312,311.88

Finding the Fourth Proportional to 527,151.24, 727,439.22 and 312,311.88

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Solution

The fourth proportional to 527,151.24, 727,439.22 and 312,311.88 is: 430,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,151.24 : 727,439.22 = 312,311.88 : x
  2. Step 2: Convert to fraction form
    527,151.24/727,439.22 = 312,311.88/x
  3. Step 3: Cross multiply
    527,151.24x = 727,439.22 × 312,311.88
  4. Step 4: Simplify right side
    527,151.24x = 227,187,910,383.93
  5. Step 5: Solve for x
    x = 227,187,910,383.93/527,151.24
  6. Step 6: Final answer
    x = 430,972.92

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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.