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Finding the Fourth Proportional to 492,727.32, 738,758.88 and 398,073.96

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Solution

The fourth proportional to 492,727.32, 738,758.88 and 398,073.96 is: 596,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,727.32 : 738,758.88 = 398,073.96 : x
  2. Step 2: Convert to fraction form
    492,727.32/738,758.88 = 398,073.96/x
  3. Step 3: Cross multiply
    492,727.32x = 738,758.88 × 398,073.96
  4. Step 4: Simplify right side
    492,727.32x = 294,080,672,846.77
  5. Step 5: Solve for x
    x = 294,080,672,846.77/492,727.32
  6. Step 6: Final answer
    x = 596,842.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.