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Finding the Fourth Proportional to 492,534.92, 738,844.32 and 155,485.40

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Solution

The fourth proportional to 492,534.92, 738,844.32 and 155,485.40 is: 233,241.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,534.92 : 738,844.32 = 155,485.40 : x
  2. Step 2: Convert to fraction form
    492,534.92/738,844.32 = 155,485.40/x
  3. Step 3: Cross multiply
    492,534.92x = 738,844.32 × 155,485.40
  4. Step 4: Simplify right side
    492,534.92x = 114,879,504,632.93
  5. Step 5: Solve for x
    x = 114,879,504,632.93/492,534.92
  6. Step 6: Final answer
    x = 233,241.34

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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.