Home / 527,516.97-727,974.18-285,799.55

Finding the Fourth Proportional to 527,516.97, 727,974.18 and 285,799.55

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Solution

The fourth proportional to 527,516.97, 727,974.18 and 285,799.55 is: 394,403.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,516.97 : 727,974.18 = 285,799.55 : x
  2. Step 2: Convert to fraction form
    527,516.97/727,974.18 = 285,799.55/x
  3. Step 3: Cross multiply
    527,516.97x = 727,974.18 × 285,799.55
  4. Step 4: Simplify right side
    527,516.97x = 208,054,689,415.75
  5. Step 5: Solve for x
    x = 208,054,689,415.75/527,516.97
  6. Step 6: Final answer
    x = 394,403.78

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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.