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Finding the Fourth Proportional to 492,691.04, 738,806.82 and 255,970.16

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Solution

The fourth proportional to 492,691.04, 738,806.82 and 255,970.16 is: 383,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,691.04 : 738,806.82 = 255,970.16 : x
  2. Step 2: Convert to fraction form
    492,691.04/738,806.82 = 255,970.16/x
  3. Step 3: Cross multiply
    492,691.04x = 738,806.82 × 255,970.16
  4. Step 4: Simplify right side
    492,691.04x = 189,112,499,924.49
  5. Step 5: Solve for x
    x = 189,112,499,924.49/492,691.04
  6. Step 6: Final answer
    x = 383,835.88

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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.