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Finding the Fourth Proportional to 492,356.35, 738,534.53 and 155,633.53

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Solution

The fourth proportional to 492,356.35, 738,534.53 and 155,633.53 is: 233,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,356.35 : 738,534.53 = 155,633.53 : x
  2. Step 2: Convert to fraction form
    492,356.35/738,534.53 = 155,633.53/x
  3. Step 3: Cross multiply
    492,356.35x = 738,534.53 × 155,633.53
  4. Step 4: Simplify right side
    492,356.35x = 114,940,735,930.79
  5. Step 5: Solve for x
    x = 114,940,735,930.79/492,356.35
  6. Step 6: Final answer
    x = 233,450.30

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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.