Home / 527,405.81-727,823.51-285,688.38

Finding the Fourth Proportional to 527,405.81, 727,823.51 and 285,688.38

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Solution

The fourth proportional to 527,405.81, 727,823.51 and 285,688.38 is: 394,251.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,405.81 : 727,823.51 = 285,688.38 : x
  2. Step 2: Convert to fraction form
    527,405.81/727,823.51 = 285,688.38/x
  3. Step 3: Cross multiply
    527,405.81x = 727,823.51 × 285,688.38
  4. Step 4: Simplify right side
    527,405.81x = 207,930,718,069.37
  5. Step 5: Solve for x
    x = 207,930,718,069.37/527,405.81
  6. Step 6: Final answer
    x = 394,251.86

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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.