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Finding the Fourth Proportional to 492,803.94, 738,929.11 and 155,929.39

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Solution

The fourth proportional to 492,803.94, 738,929.11 and 155,929.39 is: 233,806.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,803.94 : 738,929.11 = 155,929.39 : x
  2. Step 2: Convert to fraction form
    492,803.94/738,929.11 = 155,929.39/x
  3. Step 3: Cross multiply
    492,803.94x = 738,929.11 × 155,929.39
  4. Step 4: Simplify right side
    492,803.94x = 115,220,765,375.54
  5. Step 5: Solve for x
    x = 115,220,765,375.54/492,803.94
  6. Step 6: Final answer
    x = 233,806.50

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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.