Home / 527,382.22-727,787.13-285,664.21

Finding the Fourth Proportional to 527,382.22, 727,787.13 and 285,664.21

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Solution

The fourth proportional to 527,382.22, 727,787.13 and 285,664.21 is: 394,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,382.22 : 727,787.13 = 285,664.21 : x
  2. Step 2: Convert to fraction form
    527,382.22/727,787.13 = 285,664.21/x
  3. Step 3: Cross multiply
    527,382.22x = 727,787.13 × 285,664.21
  4. Step 4: Simplify right side
    527,382.22x = 207,902,735,539.62
  5. Step 5: Solve for x
    x = 207,902,735,539.62/527,382.22
  6. Step 6: Final answer
    x = 394,216.43

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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.